Materials,
Journal Year:
2024,
Volume and Issue:
17(24), P. 6155 - 6155
Published: Dec. 17, 2024
Within
this
study,
a
methodology
for
the
numerical
simulation
of
droplet
freezing,
including
micrometer
texturized
pattern,
was
developed.
The
finite
volume
method
then
applied
to
simulate
behavior
water
droplets.
procedure
divided
into
two
processes:
stabilization
and
freezing.
In
step,
dropped
onto
material
surface
took
an
equilibrium
shape.
second
additional
energy
equation
temperature
boundary
conditions
were
perform
freezing
simulation.
Based
on
laser-texturized
samples
polyurethane-coated
metal
substrates
studied
with
delay
experiments,
models
generated,
simulations
performed.
Three
cases
studied—non-texturized
respectively
linear
triangular
patterns.
obtained
results
time
compared
experimental
measurements
evaluate
proposed
methodology.
study
revealed
that
despite
inability
predict
accurate
time,
can
be
used
compare
capabilities
different
Additionally,
model
renders
it
possible
analyze
aspects
wetting
rough
surfaces,
which
may
helpful
in
understanding
these
processes.
Lubricants,
Journal Year:
2025,
Volume and Issue:
13(1), P. 16 - 16
Published: Jan. 3, 2025
Nanoindentation
has
been
used
to
characterize
the
mechanical
and
creep
properties
of
various
materials.
However,
research
on
viscoelastic
superhydrophobic
surfaces
remains
limited.
In
this
study,
a
coating
was
developed
its
corrosion
resistance
evaluated
initially.
Electrochemical
impedance
spectroscopy
(EIS)
results
quantitatively
confirm
enhanced
anti-corrosion
performance
coating.
Subsequently,
study
investigates
creep,
hardness,
strain
rate
sensitivity,
behavior
surface
at
nanoscale
before
after
accelerated
exposure.
Our
findings
reveal
that
during
tests,
logarithmic
values
stress
exhibited
good
linear
relationship.
Additionally,
retains
key
(hardness,
storage
modulus,
loss
tan
δ)
even
exposure
corrosion.
These
highlight
surface’s
robustness
under
corrosive
conditions,
crucial
factor
for
applications
requiring
both
integrity
environmental
resilience.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(3), P. 378 - 378
Published: Jan. 30, 2025
This
research
aims
to
evaluate
the
effectiveness
of
protective
coatings
in
preventing
corrosion
steel
marine
environment.
Electrochemical
tests
were
performed
on
S355JR
immersed
natural
seawater
(Black
Sea,
Port
Constanta)
over
a
period
22
weeks,
using
electrochemical
techniques
such
as
evolution
open
circuit
potential
(OCP)
and
linear
polarization
resistance
calculate
Rp
rate
(Vcorr).
The
investigated
surfaces
included
(a)
blasted
with
Al2O3,
(b)
coated
epoxy
primer
enriched
zinc,
(c)
polyurethane
paint,
(d)
subsequently
then
paint
which
kreutzonit
particles
had
been
added.
proportion
added
was
2
wt%
total
mass
paint.
Subsequently,
samples
subjected
morphological
analyses
cross-sectional
analysis
by
scanning
electron
microscopy
(SEM),
topographical
characterization
(roughness
microhardness),
structural
assessments
(FTIR
XRD),
well
an
hydrophobicity
(contact
angle).
results
this
study
revealed
significant
differences
behavior
between
different
tested.
that
coating
provided
best
protection
environment
during
immersion.
