Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Zirconium
disilicide
(ZrSi2)
is
often
used
in
high-temperature
applications
due
to
its
excellent
mechanical
properties
and
thermal
stability.
This
study
aims
investigate
the
microstructure
physical
of
ZrSi2
ceramics
prepared
under
high-pressure
(HPHT)
sintering
conditions.
The
research
results
show
that
density,
Vickers
hardness,
fracture
toughness
ceramic
sample
reach
4.7
g/cm3,
10.547
GPa,
6.905
MPa·m1/2,
respectively.
It
worth
noting
exhibits
oxidation
resistance
starting
temperature
1463
°C.
experimentally
measured
diffusion
coefficient
2.815
mm2/s,
specific
heat
capacity
0.48
J/g·K,
from
which
conductivity
calculated
be
6.354
W/m·K.
first-principles
calculation
crystal
structure
has
good
dynamic
stability,
silicon
atoms
zirconium
are
connected
by
strong
covalent
bonds.
At
same
time,
obtained
this
experiment
a
uniform
grain
size
distribution,
high
dislocation
texture.
crucial
for
preparation
application
ceramics.
