Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Oct. 24, 2024
Abstract
The
possibility
of
reusing
ceramic
roller
waste
to
produce
cordierite
and
mullite
refractories
was
investigated.
Five
batches
were
designed
using
wastes
representing
waste,
magnesite,
silica
sand,
shaped
fired
at
1300
°C/2
h,
one
batch
selected
1200
°C.
chemical
composition
precipitated
phases
the
used
raw
materials
analyzed
XRF
XRD
techniques,
respectively.
Densification
parameters,
morphology,
microstructure
electrical
properties
also
studied
evaluate
effect
formed
on
materials.
Bulk
density
increases
with
an
increase
in
a
decrease
cordierite,
it
increasing
temperature,
whereas
porosity
water
absorption
show
opposite
behavior
(it
decreases
temperature).
main
developed
after
firing
h
mullite,
corundum,
baddeleyite,
spinel.
Bending
strength
percentage
density,
decreasing
grain
size
porosity.
develops
becomes
finer
density.
crystals
very
fine
increased
h.
Broadband
dielectric
spectroscopy
employed
study
investigated
samples.
concentration
shows
remarkable
ε’,
especially
lower
frequencies,
as
is
three
times
higher
than
that
M10.
At
f
>
103
Hz
frequency
independence
accompanied
by
concentrations
due
lag
dynamics
fluctuations
alteration
electric
field.
generation
new
free
ions
leads
enhancement
conductivity
increases.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(10), P. 2391 - 2391
Published: May 20, 2023
The
solution
casting
technique
is
utilized
to
fabricate
blank
and
CuO-doped
polyvinyl
alcohol/chitosan
(PVA/CS)
blends
for
eco-friendly
applications.
structure
surface
morphologies
of
prepared
samples
were
explored
by
Fourier
transform
infrared
(FT-IR)
spectrophotometry
scanning
electron
microscopy
(SEM),
respectively.
FT-IR
analysis
reveals
the
incorporation
CuO
particles
within
PVA/CS
structure.
SEM
exposes
well-dispersion
in
host
medium.
linear/nonlinear
optical
characteristics
found
on
basis
UV-visible-NIR
measurements.
transmittance
decreases
upon
increasing
20.0
wt%.
bandgap
(Eg
dir./Eg
ind.)
from
5.38/4.67
eV
(blank
PVA/CS)
3.72/3.12
(20.0
wt%
CuO-PVA/CS).
An
obvious
improvement
constants
blend
achieved
doping.
Wemple-DiDomenico
(WDD)
Sellmeier
oscillator
models
examine
role
dispersion
behavior
blend.
shows
clear
enrichment
parameters
host.
novel
findings
current
study
nominate
films
applications
devices.
Advanced Materials Technologies,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 18, 2024
Abstract
This
review
delves
into
the
progress
made
in
additive
manufacturing
through
incorporation
of
conductive
fillers
nanocomposites.
Emphasizing
critical
role
percolation
and
conductivity,
study
highlights
advancements
material
selection,
particularly
focusing
on
carbon
nanotubes
with
low
thresholds.
The
practical
applications
these
nanocomposites
polymer
composites
are
explored,
emphasizing
understanding
Furthermore,
present
paper
investigates
potential
materials
as
lightweight
alternatives
for
electromagnetic
interference
shielding
(EMI),
key
sectors
such
automotive
aerospace
industries.
integration
advanced
materials,
modeling
techniques,
standardization
is
discussed
pivotal
successful
implementation.
Overall,
underscores
significant
strides
enhancing
electrical
properties
capabilities
strategic
use
filler
manufacturing.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(11), P. e32094 - e32094
Published: May 29, 2024
Acrylonitrile
butadiene
styrene
(ABS)
composites
were
prepared
in
filament
form
compatible
with
the
material
extrusion
(MEX)
3D
printing
method,
using
biochar
as
a
filler
at
various
loadings
of
up
to
10.0
wt.
%.
Samples
fabricated
experimentally
investigate
their
mechanical
performance.
The
ABS/biochar
characterized
thermogravimetric
analysis,
differential
scanning
calorimetry,
Raman
spectroscopy,
and
rheological
tests.
electrical
properties
investigated
broadband
dielectric
spectroscopy.
Scanning
electron
microscopy
was
utilized
analyze
morphological
features
specimens
by
examining
side
fracture
surfaces.
results
indicate
that
composite
4.0
%
content
compared
pure
ABS
showed
highest
response
between
(24.9
21
higher
than
tensile
flexural
strength
respectively).
retained
insulating
behavior.
These
findings
contribute
expanding
utilization
method
while
also
unlocking
prospects
for
potential
applications
microelectronics,
apart
from
reinforcement.
Polymers for Advanced Technologies,
Journal Year:
2023,
Volume and Issue:
34(9), P. 2974 - 2992
Published: June 9, 2023
Abstract
Herein,
Ti
2
CT
x
MXene‐Polyvinyl
alcohol
(PVA)
nanocomposite
films
with
different
weight
percent
(wt%)
of
MXene
loadings
were
successfully
prepared
using
the
facile
solution
casting
method.
The
structural,
morphological,
optical,
thermal,
and
tensile
properties
analyzed
FTIR,
XRD,
Raman,
SEM,
UV–Vis
spectroscopy,
TG‐DTA,
mechanical
tests,
so
forth.
variation
in
dielectric
constant,
loss
tangent,
AC
conductivity
was
range
1
Hz
to
10
MHz
temperature
(30–150°C)
concentrations
(5–20
wt%)
impedance
spectroscopy.
showed
a
very
high
constant
~10
5
for
lower
frequency
low
0–1
higher
(100
kHz–10
MHz).
values
increased
at
certain
further
decreased
increase
temperature.
filler
concentration
these
investigated
electrical
parameters
but
20
wt%,
reached
percolation
limit,
hence
slight
reduction
noticed.
Moreover,
complex
spectroscopy
studies
also
carried
out
their
corresponding
circuit
diagrams
fitted
according
obtained
cole‐cole
plots.
