The Journal of Adhesion,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 28
Published: Oct. 8, 2024
Improving
the
surface
properties
of
AA2024-T3
aluminium
alloys
is
crucial
for
achieving
durable
and
sustainable
joints.
For
this
purpose,
were
first
sandblasted
at
4,
5
6
bar
pressures
using
oxide
glass
sphere
abrasives.
Then,
samples
subjected
to
chemical
treatment
resulting
in
a
hybrid
process.
The
surface-treated
characterised
by
3D
image
analysis,
contact
angle
roughness
measurement.
Additionally,
single-lap
joints
fabricated
adhesives
with
low
high
viscosity.
effect
changes
viscosity
on
mechanical
has
been
analysed
detail.
It
was
found
that
both
sandblasting
treatments
applied
caused
significant
improvement
alloys,
which
chemically
treated
after
being
spheres
pressure,
joined
adhesives,
failure
load
these
increased
approximately
110%
68%,
respectively,
compared
untreated
samples.
In
case
usage,
increase
rates
determined
be
93%
43%.
Micromachines,
Journal Year:
2025,
Volume and Issue:
16(2), P. 225 - 225
Published: Feb. 16, 2025
This
study
investigates
the
development
of
a
rapid
wax
injection
tooling
with
enhanced
heat
dissipation
performance
using
aluminum-filled
epoxy
resin
molds
and
cooling
channel
roughening
technology.
Experimental
evaluations
were
conducted
on
channels
eleven
surface
roughness
variations,
revealing
that
maximum
71.9
µm
achieved
an
81.48%
improvement
in
efficiency
compared
to
smooth
channels.
The
optimal
coolant
discharge
rate
was
determined
be
2
L/min.
time
for
patterns
significantly
reduced,
enabling
reduction
approximately
12
s
per
product.
For
production
scale
100,000
units,
this
equates
savings
about
13
days.
Empirical
equations
established
estimating
pressure
drop,
high
coefficient
determination.
research
provides
valuable
contribution
mold
dies
manufacturing
industry,
offering
practical
solutions
sustainable
efficient
processes.
Surface Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 16, 2025
Achieving
strong
adhesion
of
polymer
coatings
like
epoxy,
acrylic,
and
polyurethane
to
aluminium
surfaces
is
a
crucial
focus
in
materials
research,
given
its
importance
across
the
automotive,
aerospace,
marine,
construction
sectors.
Current
adhesion-promoting
surface
treatments
anodizing,
electropolishing,
phosphate
chromate
conversion
are
environmentally
problematic
due
their
chemical
processes,
necessitating
development
alternative
solutions.
With
goal
enhancing
coating
performance
on
alloys,
we
introduce
atmospheric
pressure
plasma
jet
technology
improve
adhesion,
mechanical
performance,
corrosion
resistance
epoxy
coatings.
This
study
investigates
impact
treatment
scratch
resistance,
graphene-reinforced
(EP/G)
composite
applied
aerospace
alloy
AA7075.
Contact
angle
measurements,
FTIR
spectroscopy,
free
energy
(SFE)
analysis
were
used
characterize
resulting
surfaces.
Test
specimens
plasma-treated
before
applying
coating.
The
wettability
was
studied
by
analyzing
effect
dispersive
(
γLD
)
specific
polar
SP
components
energy.
removal
contaminants
weak
boundary
layers
increased
reactivity,
directly
leading
significant
increase
from
43.49
mJm
2
142.34
.
improved
wettability.
Potentiodynamic
polarization
revealed
that
coating's
oxidation
significantly
enhanced
cleaning
process
using
ionized
argon
ions
prior
evidenced
shift
E
corr
value
–
1.28
V
0.31
V.
Further,
supporting
protective
coatings,
electrochemical
impedance
spectroscopy
(EIS)
results
indicated
superior
for
EP/G
treated
AA7075
than
untreated
samples.
Crystals,
Journal Year:
2025,
Volume and Issue:
15(5), P. 408 - 408
Published: April 26, 2025
The
selection
of
a
suitable
plasma-facing
material
(PFM)
that
must
protect
the
divertor,
cooling
systems,
and
structural
components
is
an
important
challenge
in
design
advanced
fusion
reactors
requires
careful
consideration.
Material
degradation
due
to
melting
evaporation
may
lead
plasma
contamination,
which
be
strictly
avoided.
Among
candidate
materials,
tungsten
(W)
most
promising
because
its
thermo-mechanical
physical
properties,
allow
it
endure
repeated
exposure
extremely
harsh
conditions
within
reactor.
spraying
(PS)
technique
gaining
increasing
interest
for
deposition
coatings
heat
sink
relatively
low
cost,
high
rates,
capability
coat
complex-shaped
surfaces
fix
damaged
situ.
This
review
aims
provide
systematic
assessment
produced
by
PS
techniques,
evaluating
their
suitability
as
PFMs.
It
discusses
W-based
technologies,
role
interface
joining
W
coating
metallic
substrates
such
copper
alloys
steels,
main
issues
related
surface
erosion
under
steady-state
transient
loads
associated
with
reactor
operation
modes
off-normal
events.
Quantitative
data
available
literature,
porosity,
oxygen
content,
thermal
conductivity
coatings,
residual
stresses
accumulated
coating–substrate
interface,
temperature,
loss
following
load
events,
were
summarized
compared
bulk
ones.
results
demonstrate
that,
optimization
fabrication
process,
PS-W
exhibit
excellent
performance.
In
addition,
previously
mentioned
advantages
technology
make
attractive
alternative
PFM
fabrication.
