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, O
as S-MATE
the O
main O
mechanism S-CONPRI
of O
combining O
pure B-MATE
metal E-MATE
and O
pure O
glass S-MATE
by O
FGM S-MANP
in O
3D B-APPL
printed I-APPL
parts E-APPL
. O
From O
results O
of O
indentation S-CONPRI
, O
tensile S-PRO
and O
shear B-CHAR
tests E-CHAR
on O
the O
gradient O
material S-MATE
samples O
, O
it O
showed O
that O
mechanical B-CONPRI
properties E-CONPRI
of O
the O
FGM S-MANP
gradually O
changed O
from O
ductility S-PRO
( O
metal S-MATE
side O
) O
to O
brittle S-PRO
( O
glass S-MATE
side O
) O
. O
The O
weakest O
part O
of O
the O
FGM S-MANP
structure O
occurred O
at O
the O
interface S-CONPRI
between O
transition B-CONPRI
phase E-CONPRI
and O
the O
CMC S-MATE
, O
which O
was O
also O
the O
interface S-CONPRI
between O
the O
ductile S-PRO
and O
brittle S-PRO
phases O
. O
The O
additive B-MANP
manufacturing E-MANP
( O
AM S-MANP
) O
process S-CONPRI