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%.
Journal of Industrial Textiles,
Journal Year:
2024,
Volume and Issue:
54
Published: Jan. 1, 2024
A
high
purity
Ni
plating
layer
was
obtained
on
the
surface
of
plain
cotton
fabric
by
electroless
nickel
plating.
The
micromorphology
and
elemental
composition
were
characterized
scanning
electron
microscopy
(SEM)
energy
dispersive
spectroscopy
(EDS).
Structural
absorbing
composites
with
glass
fiber
(GFs)/epoxy
resin
(EP)
as
permeable
layer,
coated
fabric/EP
carbon
UD
cloth
(UDCFs)/EP
reflecting
prepared
vacuum
assisted
perfusion
(VARI).
effects
different
thicknesses
microwave
absorption
properties
mechanical
investigated.
results
show
that
lowest
reflection
loss
(RL)
is
−31.02
dB,
effective
bandwidth
(RL
<
−10
dB)
6.21
GHz
(11.55
-
17.76
GHz),
maximum
tensile
bending
loads
endured
are
41.36
KN
1.63
at
15.14
a
thickness
2.5
mm,
which
provides
good
reference
value
for
subsequent
preparation
magnetic/dielectric
both
excellent
properties.
Eximia,
Journal Year:
2024,
Volume and Issue:
13, P. 715 - 728
Published: Aug. 10, 2024
Flame
thermal
spraying
is
an
important
technique
in
surface
treatment
of
many
materials
exposed
to
external
corrosion,
including
turbine
blades
power
plants,
bridges,
and
oil
pipelines.
Therefore,
a
ceramic
material
represented
by
aluminum
oxide
Al2O3
was
used
as
base
copper
metal
Cu
added
at
different
reinforcement
ratios
5%,
10%,
15%,
20%,
25%Wt.
To
form
cermet
alloy.
The
two
powders
were
mixed
after
taking
into
account
the
concentrations,
mixture
placed
flame
device
crucible.
acetylene
gas
ratio
fixed
0.7
bar
oxygen
4
best
mixing
obtained.
coating
process
carried
out
on
out-of-service
blade
bases
with
dimensions
20mm×5mm
circular
shape.
After
completing
process,
samples
sintered
oven
1100°C
for
only
one
half
hours.
scanning
electron
microscope
(SEM)
examined
it
found
that
adding
we
get
regular
homogeneous
structure,
sintering,
also
average
grain
size
approximately
109nm.
An
EDX
spectroscopy
conducted
show
both
alumina
copper.
Some
mechanical
properties
which
showed
(75%Wt.Al2O3-25%Wt.Cu)
micro-Vickers
hardness
be
(605
kg/mm2),
wear
rate
calculated
gave
lowest
value
(1.84×10-6g/cm).
While
adhesive
strength
coated
uncoated
sample
find
(53
MPa).
true
porosity
water
absorption
give
values
Surface Topography Metrology and Properties,
Journal Year:
2024,
Volume and Issue:
12(4), P. 045013 - 045013
Published: Nov. 5, 2024
Abstract
Reasonable
texture
parameters
can
effectively
generate
local
dynamic
pressure
effects
and
promote
the
formation
of
lubrication
film.
The
synergistic
friction
reduction
mechanism
shield-shaped
on
Silicon
Carbide
(SiC)
surface
under
water-based
conditions
between
flow
effect
‘rolling
ball’
is
investigated
by
combining
simulation
analysis
experiments.
shield
textured
wear
characteristics
SiC
interfacial
polarization
electric
field
different
rotational
speeds
load
were
analyzed.
results
display
that
has
a
beneficial
improving
tribological
properties.
with
6%
area
occupancy
showed
best
characteristics.
displays
optimal
Moreover,
mechanisms
working
are
discussed,
uniformly
arranged
surfaces
being
more
suitable
for
high-speed
heavy
(140
N,
2000
rpm)
non-uniformly
low-speed
light
(40
400
conditions.
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%.
