publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2016-03-01 | The effect of compressive, tensile, and impact deformation on the mechanical and physical properties of a complexly alloyed austenitic-ferritic steel for making springs and elastic members is studied at room and negative temperatures. The structural changes and their interrelation with the mechanical properties are ana... | Changes in the Structure and Properties Under Deformation of Austenitic-Ferritic Steel at Room and Negative Temperatures | 10.1007/s11041-016-9936-4 |
2016-03-01 | A set of governing equations comprising linear momentum, mass, and heat transfer is presented for thermoelastic freezing of a porous material. The theory of unsaturated freezing porous media is introduced to model deformation of concrete, a traditional building material, whose pore network is pressurized by the wet air... | Simulation of Mass, Linear Momentum, and Energy Transport in Concrete with Varying Moisture Content during Cooling to Cryogenic Temperatures | 10.1007/s11242-016-0636-8 |
2016-03-01 | The aramid fiber composite materials were processed by CNC milling machine in dye cutting and liquid nitrogen cryogenic conditions. The milling qualities and forces were analyzed, and cutting mechanism was discussed. The results show that with the increase of spindle speed, the better surface quality is only obtained i... | Effect of cryogenic conditions on the milling performance of aramid fiber | 10.1007/s00170-015-7574-4 |
2016-03-01 | We demonstrate that the superconducting film resonator can be used to accurately and quantitatively measure the microwave dielectric loss tangent of a variety of materials. Compared to traditional dielectric resonator loaded metal cavity method, it has advantage of small sample size (~2–3 orders of magnitude smaller th... | Measurement of dielectric loss tangent at cryogenic temperature using superconducting film resonator | 10.1007/s40094-015-0197-1 |
2016-03-01 | Separation of Ne isotopes by fractionation at 28 K is studied. The number of transfer units in the upper and lower column sections is calculated with various loadings. Experimental characteristics of packed fractionation columns and examples of cascade systems constructed from them are given. A diagram of a cryogenic l... | Separation of Neon Isotopes by Stepwise Fractionation at 28 K | 10.1007/s10556-016-0116-6 |
2016-03-01 | High thrust rockets require high performance liquid engines for its propulsion. The thrust necessary for propulsion is produced by mixing, burning and ejecting a fuel and an oxidizer inside the thrust chamber of the engine. The engine investigated in this study is an indigenously developed semi-cryogenic engine develop... | Cyclic Stress Analysis of a Rocket Engine Thrust Chamber Using Chaboche, Voce and Creep Constitutive Models | 10.1007/s12666-015-0799-y |
2016-02-27 | We report on the temperature dependence of single-event upsets in the 215–353 K range in a 4M commercial SRAM manufactured in a 0.15-μm CMOS process, utilizing thin film transistors. The experimental results show that temperature influences the SEU cross section on the rising portion of the cross-sectional curve (such ... | Experimental study of temperature dependence of single-event upset in SRAMs | 10.1007/s41365-016-0014-9 |
2016-02-01 | This is a discussion of the characteristics of a cryogenic radiometer and monochromatic radiation source that form part of the National primary standard GET 213–2014 for the units of absolute and relative spectral sensitivity at wavelengths from 0.25 to 14.00 μm and are intended for calibration of photodetectors with r... | National Primary Standard for the Units of Absolute and Relative Spectral Sensitivity at Wavelengths from 0.25 TO 14.00 μm Get 213–2014 | 10.1007/s11018-016-0869-5 |
2016-02-01 | Deep cryogenic heat treatment is a supplementary process performed on steels specifically tool steels before tempering to improve the wear resistance and hardness of these materials. The carbide distribution changes via the electric current flow or the application of a magnetic field during the deep cryogenic heat trea... | Effect of Carbide Distribution on Corrosion Behavior of the Deep Cryogenically Treated 1.2080 Steel | 10.1007/s11665-015-1858-6 |
2016-02-01 | We analyzed changes in cell composition of umbilical cord blood and functional activity of hematopoietic stem cells during cryogenic storage and after repeated freezing/thawing cycles. It was found that repeated freezing/thawing cycles performed according to the optimal programmable freezing protocol did not significan... | Changes in Cell Composition of Umbilical Cord Blood and Functional Activity of Hematopoietic Stem Cells during Cryogenic Storage and Repeated Freezing/Thawing Cycles | 10.1007/s10517-016-3220-x |
2016-02-01 | The mechanical alloying of Au–Co mixtures, which are systems with high positive mixing enthalpy, is studied following high-pressure torsion deformation at room and cryogenic temperatures. X-ray diffractometry in synchrotron radiation and scanning microscopy are used to investigate the sequence of structural changes in ... | The formation, structure, and properties of the Au–Co alloys produced by severe plastic deformation under pressure | 10.1134/S0031918X16020125 |
2016-02-01 | The principles underlying the construction of primary standard detectors and sources of ultraviolet radiation are considered. A double ionization chamber, proportional counter, and cryogenic radiometer with electrical displacement are used as the standard radiation detectors while synchrotron radiation the spectral cha... | Spectroradiometry of Ultraviolet Radiation | 10.1007/s11018-016-0873-9 |
2016-02-01 | The perforated plate is one of the effective devices for measuring flow rate accurately. In this study, a perforated plate is investigated for its characteristics, mainly including discharge coefficient C and pressure loss coefficient ζ , when applied to cryogenic fluids with the help of ANSYS Fluent. Three cryogenic f... | Numerical study on performance of perforated plate applied to cryogenic fluid flowmeter | 10.1631/jzus.A1500082 |
2016-02-01 | We studied drag reduction, rheological behavior, and cryogenic transmission electron microscopy (cryo-TEM) imaging of aqueous solutions of a cationic surfactant, Arquad 16–50 (5 mM) (commercial cetyltrimethylammonium chloride, CTAC), with two series of isomer counterions at 5 mM: 3-, 4-, and 5-methylsalicylate, and 3-,... | Comparison of the effects of methyl- and chloro-substituted salicylate counterions on drag reduction and rheological behavior and micellar formation of a cationic surfactant | 10.1007/s00397-015-0904-5 |
2016-01-01 | China has become one the largest energy consumer in the world due to the rapid growth of its economy, leading to the steady increase in the consumption of LPG, LEG and LNG in recent years. Therefore, urgent demands for the steels to be able to contain liquefied gases had emerged. Nickel containing cryogenic steels had ... | The Development of Ni-Containing Cryogenic Steels and Their Industrial Manufacturing | 10.1007/978-3-319-48765-6_111 |
2016-01-01 | The rise of LNG as a green fuel, in the face of global warming, is leading to the use of relatively small, vacuum insulated VI tanks for 1–100 m^3 capacity of pressurised LNG. Such tanks have been widely used over many years for the supply of nitrogen, oxygen and argon as cryogenic liquids. They are called ‘zero-boil-o... | Vacuum Insulated Tanks for Pressurised LNG | 10.1007/978-3-319-20696-7_7 |
2016-01-01 | Besides for liquid nitrogen (LN), equipment to deliver other cryogens for dermatological purposes is available. Carbon dioxide can be shaped to adapt to lesions or areas to be frozen for cryotherapy and ablation; Carbon dioxide gas dispensing units are available. Nitrous oxide dispensing equipment is in the market. Som... | Dispensing Units (Carbon Dioxide, Nitrous Oxide, etc.) | 10.1007/978-1-4471-6765-5_15 |
2016-01-01 | Significant improvement in mechanical properties of tool steels may be obtained by cryogenic heat treatment at temperatures as low as 77K. However, the selection of the cryogenic temperature can significantly influence the final properties. In the present study, AISI D2 tool steel was cryogenically treated at 183K and ... | Influence of Cryogenic Treatment on Microstructure Characteristics and Mechanical Properties of Aisi D2 Tool Steel | 10.1007/978-3-319-48237-8_117 |
2016-01-01 | Potential of Comprehensive Two-Dimensional Gas Chromatography for the Analysis of Lipids | 10.1007/978-94-007-7864-1_70-1 | |
2016-01-01 | The paper is devoted to the Allan variance usage for output signal fluctuation analysis of weak signal receivers. The tri-band microwave receiving system for the new radio telescope RT-13 of Institute of Applied Astronomy of Russian Academy of Sciences is considered. The Allan variance correction for signals with «dead... | The Allan Variance Usage for Stability Characterization of Weak Signal Receivers | 10.1007/978-3-319-46301-8_56 |
2016-01-01 | Results of an experimental investigation into the deformation and destruction of a metal composite vessel with a cryogenic gas are presented. Its structure is based on basalt, carbon, and organic fibers. The vessel proved to be serviceable at cryogenic temperatures up to a burst pressure of 45 MPa, and its destruction ... | Mechanical Behavior of A Metal Composite Vessels Under Pressure At Cryogenic Temperatures | 10.1007/s11029-016-9542-y |
2016-01-01 | Examples of the application of a cryogenic moderator in the REMUR time-of-flight neutron reflectometer of the IBR-2 pulsed reactor (Dubna) are given. The results of two experiments are presented: spatial beam splitting upon reflection from a magnetically noncollinear film and the recording of a microbeam formed by a la... | Application of a cryogenic moderator in the REMUR neutron reflectometer | 10.1134/S1027451016010146 |
2016-01-01 | In this study, Taguchi method has been applied to evaluate the effect of cryogenically treated tools in turning of Hastelloy C22 super alloy on surface roughness. The optimum parameters (cryogenic treatment, cutting speed, and feed rate) of turning were determined by using the Taguchi experimental design method. In Tag... | The effects of cryogenic-treated carbide tools on tool wear and surface roughness of turning of Hastelloy C22 based on Taguchi method | 10.1007/s00170-015-7356-z |
2016-01-01 | If two non-boiling liquids at ambient temperatures are mixed (say diesel and gasoline fuels) the heat of mixing causes the temperature of the mixture to rise; that’s all. If two LNG liquids with different compositions, or LPG liquids, are mixed at atmospheric pressure, the heat of mixing will create a large volume of b... | Advisory Summary and Introduction to LNG (and LPG) | 10.1007/978-3-319-20696-7_1 |
2016-01-01 | The present chapter encloses the primary objective of this research work, at which most of the invested time and efforts have been devoted; this is the design and development of an experimental system to perform in situ RR experiments at the end of one of the beam lines of a Tandetron ion-irradiation facility. Such tas... | Experimental on Resistivity | 10.1007/978-3-319-38857-1_3 |
2016-01-01 | Experimental vibration certification of launcher cryogenic tanks is an important issue in the aerospace industry. Liquid hydrogen is indeed too dangerous to be used in tank vibration tests. Unlike most fluids used in aerospace industry such as liquid oxygen, surrogate fluids cannot be used to approach the modal behavio... | Surrogate Granular Materials for Modal Test of Fluid Filled Tanks | 10.1007/978-3-319-29910-5_14 |
2016-01-01 | Quasi-gley chernozems of the Trans-Baikal region are characterized by the clearly pronounced anisotropy of their properties related to carbon sequestration processes. The main carbon pool is concentrated in the humus horizon; the organic carbon content sharply decreases down the soil profile. The pool of organic carbon... | The pool of organic carbon and its isotopic composition in cryomorphic quasi-gley chernozems of the Trans-Baikal region | 10.1134/S106422931507011X |
2016-01-01 | This investigation reports the effect of thermal shock of different gradients, i.e., immediate transition from high temperature to cryogenic environment and vice versa on the flexural properties of Al_2O_3 particulate reinforced Cu metal matrix micro- and nano-composites fabricated by powder metallurgy route. The speci... | Implications of Degree of Thermal Shocks on Flexural Properties of Cu-Al_2O_3 Micro- and Nano-composites | 10.1007/s11665-015-1832-3 |
2016-01-01 | Strain calibration measurements are performed for acrylate coated, substrate-free fiber Bragg grating (FBG) sensors at room temperature of 298 K and cryogenic temperature of 77 K. A 1550 nm Bragg wavelength (λ_B) FBG sensor, with its sensing part not being bonded to any surface, is subjected to axial strain using MTS25... | Strain Calibration of Substrate-Free FBG Sensors at Cryogenic Temperature | 10.1007/978-3-319-47075-7_24 |
2016-01-01 | Every year, people have died from accidents with cryogenic liquids. The enormous volume expansion of 600 to one for LNG, and 350 to one for LPG, takes everyone by surprise when there is a leakage or accidental spill. The vapours are non-toxic and odourless, and can easily reduce the oxygen level below that needed for r... | Safe Handling and Storage of LNG and LPG | 10.1007/978-3-319-20696-7_9 |
2016-01-01 | The thermal state of high-temperature superconductor current leads is considered upon changes in the current density. A change of the thermal regime in the resistive section and at a point of contact between a normal conductor and superconductor is described. The factors limiting the current density in current leads ar... | Current density in HTSC current leads | 10.3103/S1068371216010028 |
2016-01-01 | There has been a substantial growth in using carbon fiber-reinforced plastic (CFRP) composite materials in aerospace and automotive industries due to their superior properties. This experimental study presents results from a comprehensive and systematic study investigating the effects of cryogenic cooling on drilling p... | Cryogenic cooling-induced process performance and surface integrity in drilling CFRP composite material | 10.1007/s00170-015-7284-y |
2016-01-01 | Stratification or the creation of two convectively stable layers of liquids with different densities is the beginning of events leading to possible roll-over. The main factors are the convective mechanism whereby heat inflows into the lower layer become locked into that layer causing its temperature to rise and density... | Factors Creating Stratification: Management of LNG Rollover | 10.1007/978-3-319-20696-7_6 |
2016-01-01 | Drilling Drilling is the most commonly used manufacturing processes for holemaking. Researchers are dealing with the development of mathematical models Mathematical models for a series of phenomena related to drilling i.e. burr size, surface roughness, cutting forces. The present research investigates the relationships... | Thrust Force and Torque Mathematical Models in Drilling of Al7075 Using the Response Surface Methodology | 10.1007/978-3-319-23838-8_6 |
2016-01-01 | Twinning greatly affects the microstructure and mechanical performance of titanium alloys. The twinning behavior of a basal textured commercially pure titanium TA2 plates rolled to 4% reduction at the ambient and cryogenic temperatures has been investigated. Microstructures of the rolled samples were investigated by op... | Twinning Behavior of a Basal Textured Commercially Pure Titanium Alloy TA2 at Ambient and Cryogenic Temperatures | 10.1016/S1006-706X(16)30015-2 |
2016-01-01 | Superconductive electrolytic niobium coatings 0.1–100 μm thick are prepared via electrochemical deposition onto SU-2000 glassy carbon substrates in (LiF + NaF + KF)_eut–K_2NbF_7 molten salt. Their structure, texture, and residual stresses are investigated by X-ray diffraction methods. It is shown that, when depositing ... | Structure, texture, and properties of superconductive electrolytic niobium coatings on glassy carbon | 10.1134/S0031918X15110095 |
2016-01-01 | All heat inflows are reduced as far as possible by using the correct insulations. This chapter is concerned with identifying all the A and B heat inflows, and how these can be reduced individually, or collectively, with suitable insulations. The first type, suitable for large tanks, is the gas-purged insulations such a... | Insulation: The Reduction of ‘A’ and ‘B’ Heat In-flows | 10.1007/978-3-319-20696-7_3 |
2016-01-01 | Generally, many previous researches conducted using FBG sensors were based on the assumption that the coefficient of thermal expansion (CTE) and the thermo-optic coefficient (TOC) of FBG sensors are constants. However, they should be considered variables for higher accuracy when FBG sensors are applied to circumstances... | Thermal characteristics of FBG sensors at cryogenic temperatures for structural health monitoring | 10.1007/s12541-016-0001-4 |
2016-01-01 | Poor corrosion resistance is limiting applications of Mg alloys. However, the corrosion performance of an Mg alloy can be enhanced through modification of its microstructure. It has been reported in the literature that the microstructure, especially grain size of AZ31 Mg alloy, has a significant influence on its corros... | Cryogenic Burnishing of AZ31B Mg Alloy for Enhanced Corrosion Resistance | 10.1007/978-3-319-48223-1_95 |
2016-01-01 | We calculate the parameters for the optimal design of a cryogenic system used to cool a HiPER laser target. The optimality criteria are minimum sliding time and maximum rolling time of the target in the system. The solution is obtained by simulating the motion of a spherical target through a curvilinear channel and con... | Numerical Solution of the Two-Criterion Optimization Problem for the Shape of a Channel with a Moving Ball | 10.1007/s10598-015-9299-5 |
2016-01-01 | In this article, we examine the problem of ensuring of ultrahigh precision for the cryogenic large space telescope (10 µm), its ultrahigh-precision pointing (one second of arc), and stabilization (0.2 of second of arc) in real time that must be dealt with. We suggest the novel concept design of the intelligence system ... | Intelligence System for Active Vibration Isolation and Pointing of Ultrahigh-Precision Large Space Structures in Real Time | 10.1007/978-3-319-27547-5_10 |
2016-01-01 | This paper aims to develop the multi response optimization technique for predict and select the optimal setting of machining parameters while machining AISI 4340 steel using utility concept. The experimental studies in machining were carried out under varying conditions of process parameters, such as cutting speed (v),... | Optimizing Multi Characterstics in Machining of AISI 4340 Steel Using Taguchi’s Approach and Utility Concept | 10.1007/s40032-015-0201-1 |
2016-01-01 | The transfer of cryogenic liquids like LNG down pipes is not as simple as pumping water. The difference is that cryogenic liquids are stored at their boiling points, whilst water is stored at ambient temperature, which is a long way from its boiling point at 100 °C. Pumping the boiling liquid can easily lead to much va... | Liquid Transfers Avoiding 2-Phase Flow | 10.1007/978-3-319-20696-7_8 |
2016-01-01 | In a cryogenic storage system, all the A heat inflows through the insulation, are into the stored liquid. The B heat inflows are absorbed by the “cold” in the boil-off vapour. They include heat transfer by radiation, conduction and convection from the ambient temperature environment of the storage system. The total A h... | Heat Flows in LNG and LPG Cryogenic Storage Systems at 1 Bar | 10.1007/978-3-319-20696-7_2 |
2015-12-01 | The cooling down of cutting temperature in machining is very important for the improvement of tool life, especially when dealing with work materials that have low thermal conductivity such as titanium alloy. In this study designed to investigate the machining performance of a variety of cooling methods, cryogenic, Mini... | The effect of cryogenic cooling and minimum quantity lubrication on end milling of titanium alloy Ti-6Al-4V | 10.1007/s12206-015-1110-1 |
2015-12-01 | The purpose of this paper is to investigate the effect of dynamic recovery on the mechanical properties of copper (Cu) during surface mechanical attrition treatment (SMAT) at both room temperature (RT) and cryogenic temperature (CT). Copper sheets were processed by SMAT at RT and at CT for 5, 15, and 30 min, respective... | Ultrahigh Strength Copper Obtained by Surface Mechanical Attrition Treatment at Cryogenic Temperature | 10.1007/s11665-015-1797-2 |
2015-12-01 | Soil temperature regimes were studied in three ecosystems of the north of Western Siberia in the zone of isolated permafrost: the forest ecosystem with gleyic loamy sandy podzol (Stagnic Albic Podzol), the flat-topped peat mound ecosystem with humus-impregnated loamy sandy to light loamy peat cryozem (Histic Oxyaquic T... | Temperature regimes of northern taiga soils in the isolated permafrost zone of Western Siberia | 10.1134/S1064229315100038 |
2015-12-01 | We present the concept of and the procedure for realizing the primary scale of the spectral responsivity based on an absolute cryogenic radiometer at the Korea Research Institute of Standards and Science (KRISS). A detailed error and uncertainty analysis is performed by calibrating the standard detectors in the wavelen... | Realization of the spectral responsivity scale based on an absolute cryogenic radiometer | 10.3938/jkps.67.2045 |
2015-12-01 | Titanium alloys are one of the most important design materials for the aircraft industry. The high strength-to-density-ratio and the compatibility with carbon fibre reinforced plastic are the reasons for a raising application in this field. The outstanding properties lead to challenging machining processes. High streng... | Experimental investigation of tool wear and chip formation in cryogenic machining of titanium alloys | 10.1007/s40436-015-0122-5 |
2015-12-01 | Clay swelling, an important phenomenon in natural systems, can dramatically affect the properties of soils and sediments. Of particular interest in low-salinity, saturated systems are osmotic hydrates, forms of smectite in which the layer separation greatly exceeds the thickness of a single smectite layer due to the in... | Formation and Restacking of Disordered Smectite Osmotic Hydrates | 10.1346/CCMN.2015.0630602 |
2015-11-14 | Background The effect of the holding time of the deep cryogenic treatment on the strain hardening of HY-TUF, a low-alloy medium-carbon steel, and a comparison with strain hardening of conventional heat-treated steel were investigated. Methods For this purpose, a deep cryogenic treatment was done for different holding t... | Influence of the holding time of the deep cryogenic treatment on the strain hardening behavior of HY-TUF steel | 10.1186/s40712-015-0052-9 |
2015-11-01 | The results of experimental studies using SuperOx J-PI-12-20Ag-20Cu tape superconductors in developing capsule carriers for cryogenic systems of noncontact transport of targets for IFE are presented. | On the use of the second-generation HTSC tapes in cryogenic transport systems for IFE targets | 10.3103/S1068335615110019 |
2015-11-01 | A grinding experiment was conducted with Ti-6Al-4V alloy in a wet and cryogenic coolant environment. An electroplated cubic boron nitride grinding wheel was used for this experiment. The input process parameters that were considered were depth of cut and nozzle inclination angle. The output response parameters that wer... | Grinding titanium Ti-6Al-4V alloy with electroplated cubic boron nitride wheel under cryogenic cooling | 10.1007/s12206-015-1036-7 |
2015-11-01 | In this study, a number of wear and tensile tests were performed to elucidate the effects of deep cryogenic treatment on the wear behavior and mechanical properties (hardness and tensile strength) of AISI H13 tool steel. In accordance with this purpose, three different heat treatments (conventional heat treatment (CHT)... | Effects of Deep Cryogenic Treatment on the Wear Resistance and Mechanical Properties of AISI H13 Hot-Work Tool Steel | 10.1007/s11665-015-1712-x |
2015-10-01 | Successful employment of advanced tool steel in engineering applications is related to its ability in terms of meeting service life requirements and fabrication with proper dimensions. Deep cryogenic treatment may be used to produce advanced tool steel by simultaneously increasing toughness, strength, and hardness. Twe... | Optimization of Tensile Properties of AISI S1 Tool Steel | 10.1007/s12666-015-0510-3 |
2015-10-01 | This experimental work was carried out by turning of AISI 1040 medium carbon steel in which the effect of cryogenic cooling (LN_2) used as a cutting fluid is compared to that of dry machining with respect to tool wear i.e. crater and flank wear, surface roughness, cutting forces (feed and cutting forces) and cutting te... | Experimental Investigation of Machining AISI 1040 Medium Carbon Steel Under Cryogenic Machining: A Comparison with Dry Machining | 10.1007/s40032-015-0178-9 |
2015-10-01 | Cryogenic machining opens up new industrial perspectives in difficult-to-cut materials like nickel-based alloys. In particular, drilling is an operation that generates high thermal and mechanical loading to the drill. Therefore, tool performance, hole geometry and surface integrity can be highly affected. The objective... | Thermo-mechanical effects in drilling using metal working fluids and cryogenic cooling and their impact in tool performance | 10.1007/s11740-015-0619-6 |
2015-10-01 | Hydrodynamic processes occurring when cryogenic liquid is injected into water are experimentally investigated. Processes accompanying the phase transitions under these conditions were recorded. Optical recording of the processes revealed their structure and stages. It is shown that at the outer boundary of a cylindrica... | Visualization of physical processes occurring on liquid nitrogen injection into water | 10.1134/S1810232815040037 |
2015-10-01 | Hybrid cutting process combines different physical mechanism to achieve an extended performance of the cutting process. Yet, adding supporting systems and consumptions must be seen critical because they are not directly adding value, which means that they are consumers only. It is essential to analyse and optimize thei... | Methodology for analysing hybrid cutting processes with thermal assistance | 10.1007/s11740-015-0624-9 |
2015-10-01 | Wet cutting is the most common cooling method used during the cutting of titanium alloys. However, this method is associated with high costs, pollution, and hazards to operators. Minimal quantity lubrication (MQL) is an effective environmentally friendly cooling method, but is not suitable for difficult-to-machine mate... | Tool wear in Ti-6Al-4V alloy turning under oils on water cooling comparing with cryogenic air mixed with minimal quantity lubrication | 10.1007/s00170-015-7062-x |
2015-09-01 | Titanium alloys, mainly because of their poor thermal conductivity, need to be cut at relatively low cutting speeds, with obvious negative consequences on the profitability of machining. An important amount of research has been done in order to increase productivity in titanium machining operations: high performance co... | Wear behaviour of PVD coated and cryogenically treated tools for Ti-6Al-4V turning | 10.1007/s12289-014-1215-6 |
2015-09-01 | The effect of filler type and mass percentage on the properties of low-density rigid polyurethane foams at a temperature of 77K was investigated. The mechanical properties of foams of density 55-90 kg/m^3 filled with milled carbon fibers of average length of 100 and 60 μm and hollow glass microspheres of average diamet... | Effect of Filler Type on the Properties of Rigid Polyurethane Foams at a Cryogenic Temperature | 10.1007/s11029-015-9516-5 |
2015-09-01 | Investigations were conducted on the machining of AISI D2 tool steel via Conventional electrical discharge machining (CEDM) and Cryogenic cooled electrode in electrical discharge machining (CCEDM). Machining parameters, including discharge current, pulse on time, and gap voltage, were varied to investigate their effect... | Experimental investigation of the process parameters in cryogenic cooled electrode in EDM | 10.1007/s12206-015-0832-4 |
2015-09-01 | In this study, the effects of deep cryogenic treatment (DCT) on the mechanical and tribological properties of AISI D3 tool steel were investigated together with a systematic correlation between their hardness and wear resistance. It was found that conventionally heat treated AISI D3 tool steel samples were significantl... | Effects of deep cryogenic treatment on mechanical and tribological properties of AISI D3 tool steel | 10.1007/s40544-015-0089-z |
2015-09-01 | We present a theoretical study of ignition thresholds and combustion efficiencies of fusion fuels in the form of solid chemical compounds of hydrogen isotopes with light elements that can be used in inertial confinement fusion targets without cryogenic devices required in traditional deuterium–tritium (DT) ice fuel des... | Ignition Thresholds and Combustion Efficiencies of Non-Cryogenic ICF Targets | 10.1007/s10946-015-9518-8 |
2015-09-01 | After 27 years of storage in liquid nitrogen, we managed to restore the growth of suspension cell culture of alfalfa ( Medicago sativa L.). The influence of factors affecting viability of alfalfa cells in vitro was investigated together with cytogenetic and physiological characteristics after their storage at the tempe... | Recovery of cytogenetic and physiological characteristics of a population of alfalfa cells after cryogenic storage | 10.1134/S1021443715040172 |
2015-08-01 | In the last decades, many superconductor-based devices have been utilized in practical applications that refer to the production/sensing of ultra-high/low magnetic fields, resistive storage of data, etc. The superconducting magnetoresistance effect (sMRE) observed in ferromagnetic/superconducting/ferromagnetic trilayer... | Cryogenic Magnetic Field Sensors and Magnetic Field-Controlled Supercurrent Switches Based on Ferromagnetic/Superconducting/Ferromagnetic Trilayers: the Performance of NiFe/Nb/NiFe and Co/Nb/Co | 10.1007/s10948-015-3047-0 |
2015-08-01 | The triple-point temperature of neon, $$T_{\mathrm{tp-Ne}}$$ T tp - Ne , is known to have dependence on the isotopic composition. Recently, the Technical Annex for the International Temperature Scale of 1990 was updated to specify the method of correction for the isotopic reference ratio of neon. In this study, to conf... | Triple-Point Temperature and the Isotopic Composition of Three Commercial Neon Gases | 10.1007/s10765-015-1883-6 |
2015-08-01 | Poly-tetrafluoroethylene (PTFE) is a high performance engineering polymer generally used as a coating material. PTFE shows poor wear resistance, thus in order to improve the wear resistance of PTFE, cryogenic treatment (CT) has proved to be the most effective technique. The improvement in wear performance of PTFE on CT... | To Investigate the Wear Mechanism on Cryogenic Treatment of PTFE-Mica Filled Composite Coatings in Cookware | 10.1007/s12666-014-0491-7 |
2015-07-01 | A set of technologies and prototype systems for eco-friendly shutdown of the power-generating, process, capacitive, and transport equipment is offered. The following technologies are regarded as core technologies for the complex: cryogenic technology nitrogen for displacement of hydrogen from the cooling circuit of tur... | Complex of technologies and prototype systems for eco-friendly shutdown of the power-generating, process, capacitive, and transport equipment | 10.1134/S0040601515070095 |
2015-07-01 | Cryogenic-based machining has been drawing attention for machining hard metals and super alloys such as the titanium alloys due to environmental concerns and growing regulations over pollution. In this study, cryogenic-assisted milling of Ti–6Al–4V has been performed with the preheated workpiece methods to avoid the cr... | Tool life improvement in cryogenic cooled milling of the preheated Ti–6Al–4V | 10.1007/s00170-015-6849-0 |
2015-07-01 | This paper presents the effects of process parameters like cutting speed, feed rate and different cooling conditions (i.e. dry, wet and liquid nitrogen used as a coolant) on tool wear (crater and flank wear) in machining of EN24 alloy steel using uncoated tungsten carbide insert tool. Experiments were carried out as pe... | Modelling and Optimization of Tool Wear in Machining of EN24 Steel Using Taguchi Approach | 10.1007/s40032-015-0175-z |
2015-07-01 | The Moffatt-Swern oxidation (MSO) is a multistep, versatile, metal-free reaction by which alcohols are transformed into aldehydes and ketones. Batch MSO requires low temperatures (−70 °C) due to a highly exothermic reaction step that generates intermediates. This work shows that a rigorous investigation of the MSO in b... | Moffat-Swern Oxidation of Alcohols: Translating a Batch Reaction to a Continuous-Flow Reaction | 10.1556/1846.2015.00025 |
2015-07-01 | The grinding process is crucial for the production of fine surfaces and the intense heat induced during the grinding operation affects the surface and sub-surface of the work material. The coolant plays a crucial role in the efficiency of the grinding process by controlling the temperature at the wheel and work materia... | Surface modifications in grinding AISI D3 steel using cryogenic cooling | 10.1007/s40430-014-0241-0 |
2015-06-01 | PtSb_2 is a potential material for cryogenic Peltier cooling applications because of its semimetal character with a high Seebeck coefficient and low electrical resistivity. To investigate the effects of n -type doping we studied PtSb_2− x Te_ x with x between 0 and 0.04. A clear doping effect was observed, and the powe... | Low-Temperature Thermoelectric Properties of PtSb_2−x
Te_
x
for Cryogenic Peltier Cooling Applications | 10.1007/s11664-014-3480-z |
2015-06-01 | The aerospace industry has increasingly been using materials that have outstanding mechanical properties such as high strength, thermal and chemical resistance. Inconel 718 has been considered ideal material for hot and corrosive environments like aircraft jetengines. However, Inconel is difficult to machine due to its... | Tool wear analysis on coated and uncoated carbide tools in inconel machining | 10.1007/s12541-015-0215-x |
2015-06-01 | NIST SRM 1548a Typical Diet has a certified iodine mass fraction value of 0.759 mg kg^−1, with a rather large expanded uncertainty (relative value 13.6 %). This might be due to the iodine inhomogeneous distribution in the pooled food material. We have proven that cryogenic grinding of NIST SRM 1548a (at the temperature... | Improving iodine homogeneity in NIST SRM 1548a Typical Diet by cryogenic grinding | 10.1007/s00769-015-1134-3 |
2015-06-01 | The elastic properties of new piezoelectric Sr_3NbGa_3Si_2O_14 crystals of the langasite (lanthanum gallium silicate) family have been investigated. The temperature dependences of the elastic constants C _11, C _33, C _66, and C _44 have been measured in a wide temperature range from 300 to 4.2 K. The characteristic pa... | Low-temperature elastic properties of Sr_3NbGa_3Si_2O_14 single crystals | 10.1134/S1063783415060311 |
2015-06-01 | Static tensile and bending experiments are conducted on 3D MWK carbon/epoxy composites with two types of fiber architecture at room and cryogenic temperature (low as −196 ℃). Macro-Fracture morphology and SEM micrographs are examined to understand the deformation and failure mechanism. The results show that tensile str... | Mechanical response and failure of 3D MWK carbon/epoxy composites at cryogenic temperature | 10.1007/s12221-015-1349-2 |
2015-06-01 | This paper analyzes how a deep cryogenic process changes the microstructure and mechanical properties of a medium-carbon low-alloy steel. The light microscopy, microhardness testing, and transmission electron microscopy reveal that η-carbide and martensite are constituent phases of deep cryogenic treated (DCT) steel, w... | Effect of Deep Cryogenic Treatment on the Microstructure and Mechanical Properties of HY-TUF Steel | 10.1007/s13632-015-0206-4 |
2015-06-01 | Enhancing the performance of cutting tools is an important factor in reducing production costs. Cutting tools are subjected to processes such as heat treatment and coating in order to improve their performance. Cryogenic treatment, which is also known as sub-zero heat treatment, has made significant contributions to th... | A review of cryogenic treatment on cutting tools | 10.1007/s00170-014-6755-x |
2015-06-01 | The main low temperature detectors (LTD) applications and results of LTD in fundamental physics will be considered with particular reference to the nuclear and subnuclear fields. The results obtained with cryogenic techniques and in particularly those with the hybrid ones where bolometers are operated in coincidence or... | Application of Low Temperature Detectors in Physics: Yesterday, Today, Tomorrow | 10.1007/s10909-014-1118-4 |
2015-05-01 | An integrated method for enhancing energy efficiency of modern large-scale cryogenic complexes (annual energy consumption more than 100 GWh) that allow operation of superconducting magnets of particle accelerators is analyzed. Two conventional loops, namely, “cold” and “warm” (compressor), with subsequent separate opti... | Cost Optimization in Designing Modern Cryogenic Complexes of Large Superconductor Systems | 10.1007/s10556-015-9992-4 |
2015-05-01 | Cryogenic two-phase flow with phase change heat transfer, consisting of a saturated liquid slug translating in its own superheated vapor in a circular pipe, was numerically simulated. The cryogenic chill down process was simplified by assuming ideal inverted annular flow regime. The method used is based on a sharp inte... | A Direct Numerical Simulation of Axisymmetric Cryogenic Chill Down in a Pipe in Microgravity | 10.1007/s10909-014-1257-7 |
2015-05-01 | The effect of deep cryogenic treatment on the formation of reversed austenite (RA) in super martensitic stainless steel was investigated. RA was found to form in steels without (A) and with (B) deep cryogenic treatment. The volume fraction of RA initially increased and then decreased with increasing tempering temperatu... | Effect of deep cryogenic treatment on formation of reversed austenite in super martensitic stainless steel | 10.1016/S1006-706X(15)30026-1 |
2015-05-01 | The S-N fatigue behavior of Fe15Mn (Fe-0.7C-15Mn-2Al) austenitic steel, including base metal and butt-welded joint, was investigated at 298 K and 110 K, and the results were compared to those of STS304L (Fe-1Si-2Mn- 20Cr-10Ni) counterparts. Both specimens showed improved resistance to S-N fatigue with decreasing temper... | Ambient and cryogenic S-N fatigue behavior of Fe15Mn steel and its weld | 10.1007/s12540-015-4397-7 |
2015-05-01 | The effect of current pulses and deep freezing down to a temperature of 77 K on the bending strength of cutting hard-alloy plates was investigated. The efficiency of different conditions of their modification was verified. | Effect of Electric Current Pulses and Cryogenic Temperatures on the Strength of Cutting Hard-Alloy Plates | 10.1007/s11223-015-9674-7 |
2015-04-01 | In this study, the effects of cryogenic treatment and drilling parameters on surface and hole quality were investigated in the drilling of AISI 304 stainless steel under dry drilling conditions. The control factors to provide better surface roughness ( Ra ) and roundness error ( Re ) were determined using the Taguchi m... | Optimization of drilling parameters using Taguchi technique and response surface methodology (RSM) in drilling of AISI 304 steel with cryogenically treated HSS drills | 10.1007/s10845-013-0783-5 |
2015-04-01 | The charpy impact experiments on the 3D integrated woven spacer composites with six types of core heights are performed at room and liquid nitrogen temperatures (as low as −196 °C). Macro-fracture morphology and SEM micrographs are examined to understand the deformation and failure mechanism. The results show that the ... | Experimental study on the charpy impact failure of 3D integrated woven spacer composite at room and liquid nitrogen temperature | 10.1007/s12221-015-0875-2 |
2015-04-01 | In-process cryogenic cooling has been credited with more precise products and enhanced integrity of machined surfaces. Enhanced surface integrity properties include smoother and more precise surfaces, grain refinement, and increase in surface hardness. This paper reports on the effect of liquid nitrogen (LN) cryogenic ... | An experimental and numerical study of the effect of cryogenic cooling on the surface integrity of drilled holes in AZ31B Mg alloy | 10.1007/s00170-014-6650-5 |
2015-03-01 | A design of the low-temperature chamber, embedded into the cuvette compartment of the LOMO-Spektr SF-56 spectrophotometer, is described. The chamber is intended for studying absorption spectra of colloidal nanoparticles of metals in neutral cryogenic liquids. | A low-temperature chamber for recording optical absorption spectra of colloidal nanoparticles of metals in cryogenic liquids | 10.1134/S0020441215020098 |
2015-03-01 | The general expression of the interaction potential between electrons in a plasma-like medium (gas plasma, semiconductor plasma) with degenerate electrons (light negative charge carriers) is calculated. It is shown that the electron-electron interaction at short distances (smaller than or of the order of the Debye scre... | Wave interaction of electrons in cryogenic plasma-like medium with degenerate electrons | 10.3103/S106833561503001X |
2015-03-01 | Microstructure in subsurface is investigated to understand the effect of cryogenic coolant in hard machining of hardened AISI 52100 bearing steel. The cutting experiments were performed under dry and cryogenic cooling conditions using cubic boron nitride (CBN) tool inserts. The change in the microstructure was analyzed... | Evaluation of microstructural changes by X-ray diffraction peak profile and focused ion beam/scanning ion microscope analysis | 10.1007/s00170-014-6471-6 |
2015-03-01 | Composite macroporous poly(vinyl alcohol) (PVA) cryogels have been prepared by cryogenic treatment (freezing at −20°C for 12 h followed by defrosting at a rate of 0.03°C/min) of dispersions of chitosan particles swollen in an aqueous 120 g/L PVA solution. The elasticity moduli and fusion temperatures have been determin... | A study of cryostructuring of a polymer system. 39. Poly(vinyl alcohol) composite cryogels filled with chitosan microparticles | 10.1134/S1061933X1502012X |
2015-03-01 | Since 1992, the largest Russian cryogenic helium complex of the superconducting accelerator Nuclotron with the cooling capacity of 4000 W at 4.5 K has been operating at the Joint Institute for Nuclear Research in Dubna. The construction of this high-efficient cryogenic system included a large number of technical ideas ... | Liquid Helium Technologies at the Cryogenic Complex of the Heavy Ion Collider NICA | 10.1007/s10948-014-2653-6 |
2015-03-01 | The main achievements of the investigations into cryogenic dusty plasma and the review of the state of the studies carried out in this region are presented. The peculiarities of the cryogenic plasma of gas discharges that affect the processes of self-organization of dusty plasma structures are discussed. The investigat... | Synergetics of dusty plasma and technological aspects of the application of cryogenic dusty plasma | 10.3103/S106837551502012X |
2015-03-01 | The influence of injection conditions on rocket engine combustion stability is investigated for a sub-scale combustion chamber with shear coaxial injection elements and the propellant combination hydrogen–oxygen. The experimental results presented are from a series of tests conducted at subcritical and supercritical pr... | Characterisation of acoustic energy content in an experimental combustion chamber with and without external forcing | 10.1007/s12567-015-0079-z |
2015-03-01 | The effects of the deep cryogenic heat treatment on the microstructural changes, wear resistance, and hardness of carburized DIN 1.7131 grade steel were investigated. Results show that cryogenic heat treatment reduced the retained austenite and increased the carbide amount. In addition, after the cryogenic heat treatme... | Effect of Deep Cryogenic Heat Treatment on the Wear Behavior of Carburized DIN 1.7131 Grade Steel | 10.1007/s40195-015-0204-1 |
2015-02-01 | The authors presented practical fabricated specifications of a prototype 10kW class high-temperature superconductor (HTS) direct current (DC) induction heating machine and analyzed its operational characteristics including the system’s efficiency and the temperature distribution of the aluminum billet in detail In this... | Fabrication and Testing of a Prototype 10-kW Class HTS DC Induction Heating Machine | 10.1007/s10948-014-2759-x |
2015-02-01 | In the development of hightemperature superconducting (HTS) power machines, it is necessary to develop the HTS termination. The HTS termination system is composed of a conductor, insulating material and electrical insulation at cryogenic temperature. In particular, the insulation body with sheds and electrical insulati... | A Study on the Insulation of the Termination for HTS Cable in Liquid Nitrogen | 10.1007/s10948-014-2731-9 |
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