Surface and Coatings Technology,
Journal Year:
2024,
Volume and Issue:
492, P. 131174 - 131174
Published: Aug. 5, 2024
A
detailed
microstructural
and
electrochemical
analysis
of
electroless
nickel
phosphorous
(NiP)
coatings
with
P
contents
13.2
±
1.2
wt%,
12.9
0.7
8.3
0.8
wt%
on
a
copper
substrate
was
performed
to
study
the
corrosion
behaviour
NiP/Cu
systems.
The
content
NiP
plays
an
essential
role
in
microstructure
terms
crystallinity.
crystallinity
variations,
representing
extent
crystalline
amorphous
phases
within
material,
content,
affect
local
characteristics
and,
hence,
protection
coatings.
highest
showed
best
performance
3.5
wt-%
NaCl
solution.
In
contrast,
surface
low
is
more
susceptible
due
presence
locations
heterogeneous
electronic
properties
that
initiate
localised
corrosion.
Microgalvanic
interactions
high
cathode-to-anode
ratio
govern
kinetics
P-content
samples.
concentration
nodule
boundaries
and/or
other
existing
structural
defects
serve
as
anodic
sites,
whereas
remainder
serves
cathodic
sites.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(6), P. 6741 - 6748
Published: Jan. 31, 2024
We
elucidate
the
catalytic
graphitization
mechanism
using
in
situ
analytical
approaches.
Catalytic
is
achieved
through
a
Ni–P
electroless
plating
process
at
relatively
low
temperature
of
1600
°C,
which
allows
for
high
crystallinity
coke.
also
employ
an
ultrasonic
treatment
during
stage
to
effectively
form
metal
layers
on
surface.
The
impact
confirmed
by
field
emission
scanning
electron
microscopy
images
cross-section
and
elemental
composition
analysis
energy
dispersive
X-ray
spectroscopy
mapping.
Structural
graphitized
cokes
via
diffraction
(XRD)
Raman
shows
that
significantly
accelerates
process.
Furthermore,
we
illuminate
behavior
transmission
XRD
analysis.
Nickel
coke
surface
facilitate
graphite
formation
encouraging
dissolution
precipitation
amorphous
carbons,
thus
resulting
efficient
temperature.
Nanomanufacturing and Metrology,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Dec. 1, 2024
Abstract
Recently,
nanomaterials
such
as
graphene,
polytetrafluoroethylene,
WS
2
,
and
MoS
have
emerged
pioneering
additives
fillers
in
metal
nanocomposite
electrodeposition,
offering
innovative
solutions
for
lubrication
tribological
enhancement.
Electrodeposition,
known
its
high
efficiency,
reliability,
operational
simplicity,
cost-effectiveness,
has
become
a
preferred
method
the
protection
of
industrial
components
from
excessive
wear
or
abrasion.
In
particular,
nickel
(Ni)
matrix
composites
fabricated
via
electrodeposition
function
an
environmentally
friendly
substitute
coatings
hard
chromium.
These
Ni-based
exhibit
multifunctional
properties,
including
enhanced
hardness,
modified
surface
wettability,
improved
anti-friction/wear
performance,
properties.
This
review
begins
by
explaining
principles
mechanisms
along
with
chemical
structures
properties
lubricating
nanoparticles.
It
discusses
dispersion
methodologies
these
nanoparticles
electrolyte
solution
to
address
aggregation
problems.
addition,
it
introduces
codeposition
models
Ni/nanomaterials
examines
key
parameters
that
influence
this
process.
systematically
explores
mechanical
wettability
resulting
nanocomposites,
their
potential
applications
practical
advantages.
Finally,
opportunities
challenges
associated
nanomaterial-enhanced
composites,
aiming
introduce
new
avenues
utilization
electrodeposition.
