dchip95/diw_rheology

DIW Rheology Database

Dataset Summary

The DIW Rheology Database is a curated tabular dataset of rheological parameters for inks used in Direct Ink Writing (DIW). The dataset was assembled from literature collected during the author's PhD research and is intended to support analysis of relationships between rheology and printability in yield-stress fluids.

This database is a work in progress and will continue to expand as additional literature is reviewed and incorporated.

The present version focuses on rheological quantities associated with the Herschel-Bulkley model, together with bibliographic metadata, material descriptors, and a binary printability label.

Potential uses include exploratory analysis, literature comparison, printability modeling, and broader materials informatics workflows for extrusion-based additive manufacturing.

Dataset Structure

The dataset is distributed as a single CSV file.

Data Instances

Each row corresponds to a literature-derived ink formulation or experimental condition.

Number of Rows

311

Data Fields

• author
  First author associated with the literature source.
  Type: string

• year
  Publication year of the source.
  Type: integer

• journal
  Journal or publication venue.
  Type: string

• ink_solid_phase
  Description of the primary solid phase in the ink.
  Type: string

• shear_thinning_index
  Herschel-Bulkley flow behavior index, commonly denoted n.
  Type: float
  Units: dimensionless

• consistency_index
  Herschel-Bulkley consistency index, commonly denoted K.
  Type: float
  Units: typically Pa·s^n

• static_yield_stress
  Static yield stress of the ink.
  Type: float
  Units: Pa

• storage_modulus
  Storage modulus of the ink.
  Type: float
  Units: Pa

• loss_modulus
  Loss modulus of the ink.
  Type: float
  Units: Pa

• is_printable
  Binary indicator for whether the formulation was printable under the reported conditions.
  Type: integer
  Values:

  • 1 = printable
  • 0 = not printable

Data Types and Units

This dataset contains bibliographic, categorical, numerical, and binary fields.

Bibliographic / Descriptive Fields

• author: string
• year: integer
• journal: string
• ink_solid_phase: string

Rheological Fields

• shear_thinning_index: float, dimensionless
• consistency_index: float, typically Pa·s^n
• static_yield_stress: float, Pa
• storage_modulus: float, Pa
• loss_modulus: float, Pa

Label Field

• is_printable: binary integer (0 or 1)

Notes and Limitations

This dataset is literature-derived and should be interpreted with care. Reported rheological values may depend on test protocol, rheometer geometry, fitting approach, sample preparation, and printing conditions. Likewise, printability in DIW is context-dependent and may vary with nozzle geometry, extrusion pressure, print speed, layer height, and other process parameters.

The Herschel-Bulkley consistency index is typically interpreted in units of Pa·s^n, but users should verify unit conventions if combining this dataset with other rheology datasets.

Because this database is a work in progress, future versions may include additional records, expanded material descriptors, and revised field definitions.

Intended Uses

This dataset may be useful for:

• exploring rheological trends in DIW inks
• benchmarking printable and non-printable formulations
• building printability classifiers or regressors
• supporting materials informatics research in additive manufacturing

Further Reading

For those interested in learning more about 3D printing, Direct Ink Writing, and designing yield stress fluids, please visit the following references:

• Cipollone, "Direct Ink Writing Printability – Ashby-like Plots for Guided Design" (2022). Graduate Theses. 11470.
• Nelson et al. "Design of yield-stress fluids: a rheology-to-structure inverse problem" (2017). Soft Matter, 13, 7578-7594
• Cipollone et al. "Coaxial Ceramic Direct Ink Writing" ACS Applied Materials & Interfaces (2022) 14, 24897-24907
• Saadi et al. "Direct Ink Writing: A 3D Printing Technology for Diverse Materials" (2022) Advanced Materials.

Citation

If you use this dataset, please cite the associated thesis and relevant source publications where appropriate.

Acknowledgments

This dataset was assembled from literature sources as part of ongoing research on Direct Ink Writing, rheology, and printable yield-stress fluids.