Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 7, 2023
Abstract
Temperature-adaptive
Ni
3
Al-based
self-lubricating
alloys
prepared
by
powder
metallurgy
were
investigated
and
evaluated
over
a
wide
temperature
range.
Al-Ag-V
exhibit
excellent
properties
wear
resistance
range,
especially
for
the
Al-20
wt%Ag-5
wt%V
alloy
with
friction
coefficients
as
low
0.26
0.23
at
room
900°C,
respectively,
rates
5
×
10
−
6
mm
/Nm
4
in
turn.
It
is
proposed
lubrication
mechanism
that
temperature-adapted
provided
soft
metal
Ag
temperatures
AgVO
VO
produced
tribo-chemical
reactions
high
temperatures.
Atomic Spectroscopy,
Journal Year:
2023,
Volume and Issue:
44(06), P. 434 - 439
Published: Dec. 31, 2023
Glow
Discharge
Mass
Spectrometry
(GDMS)
is
considered
one
of
the
most
mature
depth
profiling
techniques.In
this
paper,
GDMS
was
employed
to
analyze
a
series
samples
comprising
brass
substrate
coated
with
nickel
films
varying
thicknesses.We
propose
novel
method
accurately
correct
elemental
depths
in
thin
film
analysis.The
sputtering
rates
high-purity
samples,
representing
main
element
and
film,
are
used
perform
weighting
ratio
correction
for
each
pulse.Leveraging
advantages
microsecond
pulse
glow
discharge
mass
spectrometry,
more
precise
result
can
be
achieved,
laying
groundwork
subsequent
accurate
profiling.
Hybrid Advances,
Journal Year:
2024,
Volume and Issue:
5, P. 100149 - 100149
Published: Feb. 1, 2024
Hydrogen
is
indeed
an
exceptional
fuel
due
to
its
unique
properties,
including
large
energy
content
by
weight,
clean
burning,
and
high
gross
calorific
value
of
141.9
MJ/kg.
It
can
reduce
the
serious
problem
greenhouse
gas
exudations
substituting
fossil
fuels.
Currently,
there
exist
diverse
methods
for
stockpiling
hydrogen
with
their
own
merits
demerits.
However,
effective
approach
incessantly
needed,
wonder
material
borophene
extraordinary
characteristics
provide
it.
This
review
informs
utilization
in
storage
through
analysis
multiple
computational
studies
on
alkali
or
transition
metal-decorated
employing
density
functional
theory.
also
encompasses
experimental
synthesis
discusses
US
Department
Energy
(DOE)
standards
previously
used
adsorbent
materials.
Additionally,
required
improvements
fuel-based
transportation
safety
precautions
while
are
addressed.
High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes,
Journal Year:
2024,
Volume and Issue:
28(3), P. 87 - 94
Published: Jan. 1, 2024
This
article
presents
the
results
from
an
examination
of
physical
and
mechanical
properties
powder
coatings
based
on
different
binding
agents,
including
epoxy,
epoxy-polyester,
polyester,
polyurethane,
silicone.
The
that
showed
highest
in
all
tests
are
polyester.
study
investigated
thickness
uniformity
achieved
under
spraying
conditions.
Specific
system
modes
were
identified
to
achieve
uniform
with
predetermined
thicknesses.
research
highlights
potential
application
as
protective
matching
layers
for
ultrasonic
sensors.
CIRP Annals,
Journal Year:
2024,
Volume and Issue:
73(1), P. 409 - 412
Published: Jan. 1, 2024
Layer
thickness
of
thin
and
multi-layer
coatings
is
a
major
design
parameter
to
functionalise
surfaces
in
broad
range
industrial
applications.
Conventional
measurement
methods
are
often
complex,
expensive,
limited
applicability,
particularly
for
on
fragile
substrates
and/or
with
complex
compositions.
An
innovative
methodology
introduced
based
nanoindentation,
leveraging
data
fusion
nanoindentation
augmentation
in-situ
current
measurement,
evaluate
functional
physical
layer
by
material
properties
statistical
modelling
techniques.
Two
cases
concerning
semiconductor
tribomechanical
applications
described,
exhibiting
faster,
cheaper,
metrologically
competitive
results
over
Coatings,
Journal Year:
2024,
Volume and Issue:
14(9), P. 1150 - 1150
Published: Sept. 7, 2024
In
this
study,
a
NiCr/YSZ
coating
was
applied
to
γ-TiAl
surface
using
multi-arc
ion
plating
technology
enhance
its
high-temperature
performance
and
explore
the
mechanisms
of
oxidation
thermal
corrosion.
The
corrosion
properties
matrix
were
investigated
at
850
°C
950
constant-temperature
test
in
75%
Na2SO4
+
25%
NaCl
mixture.
results
indicate
that
after
100
h,
weight
gain
samples
70.1
mg/cm2
118.2
°C.
At
these
temperatures,
sulfide
formation
on
increases,
leading
loose
porous
surface.
After
h
°C,
primary
product
tetragonal-ZrO2.
Y2O3,
which
mainly
acts
as
stabilizer
YSZ,
reacted
with
Na2SO4,
resulting
continuous
consumption
Y2O3.
This
reaction
caused
substantial
amount
tetragonal-ZrO2
transform
into
monoclinic-ZrO2,
altering
volume
ceramic
layer,
induced
internal
stress,
crack
propagation,
minor
spallation.
A
dense
thermally
grown
oxide
(TGO)
layer
effectively
impeded
diffusion
molten
salt
substances
oxygen,
thereby
significantly
improving
resistance
barrier
coating.
Coatings,
Journal Year:
2024,
Volume and Issue:
14(10), P. 1271 - 1271
Published: Oct. 3, 2024
Magnetism
is
an
important
property
of
doped
two-dimensional
nanostructures.
By
introducing
dopant
atoms
or
molecules,
the
electronic
structure
and
magnetic
behavior
nanostructures
can
be
altered.
However,
complexity
doping
process
requires
different
strategies
for
preparation
testing
various
types,
layers,
scales
materials
using
traditional
techniques.
This
resource-intensive,
inefficient,
pose
safety
risks
when
dealing
with
chemically
unstable
materials.
Deep
learning-based
methods
offer
effective
solution
to
overcome
these
challenges
improve
production
efficiency.
In
this
study,
a
deep
method
proposed
predicting
magnetism
An
image
dataset
was
constructed
learning
publicly
available
database
The
ResNet
model
enhanced
by
incorporating
Swin
Transformer
module,
resulting
in
Swin–ResNet
network
architecture.
A
comparative
analysis
conducted
models,
including
Resnet,
Res2net,
ResneXt,
Transformer,
evaluate
performance
optimized
demonstrated
significant
improvements
prediction,
best
accuracy
0.9.
Journal of Composite Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 24, 2024
This
research
endeavors
to
utilize
electrophoretic
deposition
(EPD)
coat
copper
(Cu)
pipes
with
graphene
oxide
(GO)
nanosheets,
aiming
bolster
their
resistance
against
corrosion.
To
achieve
this,
a
stable
aqueous
colloidal
suspension
of
GO
was
meticulously
prepared
via
liquid
exfoliation
in
deionized
water.
served
as
an
electrolytic
solution
for
EPD.
The
EPD
process
involved
the
meticulous
application
varied
operational
parameters
such
time,
applied
voltage,
and
nanosheet
concentration
facilitate
anodic
on
pipe’s
surface.
gauge
efficacy
coating,
evaluations
were
conducted
assess
adhesive
force
stabilization
using
specialized
coating
adhesion
scratch
testing
equipment.
Further
analysis
resulting
film
Cu
pipe
executed
employing
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
Raman
spectroscopy,
Fourier
transform
infrared
spectroscopy
(FT-IR).
These
methods
provided
detailed
insights
into
characteristics
properties
material
post-deposition.
study
yielded
noteworthy
outcomes,
revealing
achievement
uniform,
unbroken,
consistent
pipe.
accomplished
by
specific
60
s
0.5
mg/mL,
voltage
20
V.
Impressively,
when
subjected
corrosive
containing
3.5%
sodium
chloride,
corrosion
protection
exhibited
remarkable
twofold
enhancement
compared
untreated
tubing,
boasting
efficiency
(η)
90.48%.
findings
suggest
that
pipe,
coated
technique,
holds
significant
promise
utilization
demanding
industrial
settings
susceptible
challenges.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 7, 2023
Abstract
Temperature-adaptive
Ni
3
Al-based
self-lubricating
alloys
prepared
by
powder
metallurgy
were
investigated
and
evaluated
over
a
wide
temperature
range.
Al-Ag-V
exhibit
excellent
properties
wear
resistance
range,
especially
for
the
Al-20
wt%Ag-5
wt%V
alloy
with
friction
coefficients
as
low
0.26
0.23
at
room
900°C,
respectively,
rates
5
×
10
−
6
mm
/Nm
4
in
turn.
It
is
proposed
lubrication
mechanism
that
temperature-adapted
provided
soft
metal
Ag
temperatures
AgVO
VO
produced
tribo-chemical
reactions
high
temperatures.
