Thermal Conductivity Measurement System for Functional and Structural Products
Nikolai S. Morozov,
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Viktor Yu. Gubin,
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Dmitriy V. Vakhrushin
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et al.
Processes,
Journal Year:
2024,
Volume and Issue:
12(10), P. 2219 - 2219
Published: Oct. 11, 2024
An
automated
system
for
measuring
the
thermal
conductivity
of
functional
and
structural
materials
was
developed.
The
main
building
blocks
setup
are
following:
heating
unit
cooling
creating
a
heat
flux
gradient
in
test
sample;
resistances
temperature
registration
control;
pads
better
contact
between
parts
sample.
effect
on
distribution
fields
developed
studied
by
computer
modelling.
A
control
software
based
hardware
implementation
steady-state
Fourier’s
law-based
method
determination
conductivity.
stopping
criterion
is
equality
fluxes
units,
as
well
stability
coefficient
readings.
testing
calibration
device
were
carried
out
using
sample
pure
aluminum
(99.999
wt.%
Al).
It
found
that
experimental
value
at
room
(T
=
22
°C)
<λ>
243
±
3
W/m·K.
This
consistent
with
literature
data
values
obtained
laser
flash
method,
which
ranges
within
λ
210–260
Language: Английский
Boron Nitride Nanotubes Embedded Nylon-6 Nanofibers Composites for Space Applications
Solid State Sciences,
Journal Year:
2024,
Volume and Issue:
unknown, P. 107819 - 107819
Published: Dec. 1, 2024
Language: Английский
Boosting cement hydration with boron nitride nanotubes
Cement and Concrete Composites,
Journal Year:
2024,
Volume and Issue:
unknown, P. 105894 - 105894
Published: Dec. 1, 2024
Language: Английский
Understanding the dielectric properties of silicone rubber‐BN nanocomposites under DC voltage
Ganesan Krupanandam,
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Manoj Dhivakar J,
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Stefan Kornhuber
No information about this author
et al.
Polymer Engineering and Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 2, 2024
Abstract
The
present
study
explores
the
dielectric
and
structural
properties
of
silicone
rubber
composites
with
low‐weight
percentages
boron
nitride
(BN)
fillers
aimed
at
insulation
applications.
incorporation
BN
into
matrix
significantly
enhances
glass
transition
temperature
(
T
g
),
melting
m
crystallization
c
).
Notably,
constant
increases
while
loss
factor
remains
minimal
a
low
concentration
matrix.
J–V
characteristics
from
space
charge
limited
current
(SCLC)
measurements
were
employed
to
evaluate
trap
density.
addition
3
wt%
filler
notably
improves
crossover
voltage
density
in
A
strong
correlation
has
been
observed
between
values
derived
SCLC
surface
potential
decay
experiments.
Furthermore,
different
temperatures
exhibit
an
Arrhenius
behavior,
providing
insights
transport
trapping
mechanisms.
Overall,
experiment
results
indicate
that
inclusion
wt
%
significant
improvement
as
well
characteristics.
Highlights
impacts
permittivity
tan
(δ)
based
on
levels.
Differential
scanning
calorimetry
shows
crystallinity
changes
increased
rubber.
Surface
relates
characteristics,
following
mechanism.
relation
temperature‐based
thermally
activated
conduction.
Trap
trends
align
methods.
Language: Английский