Heliyon,
Год журнала:
2023,
Номер
9(6), С. e17170 - e17170
Опубликована: Июнь 1, 2023
The
problems
associated
with
Stainless
Steel
316
L
(SS
L)
orthopedic
implants,
when
implanted
in
the
human
body,
are
infection,
local
inflammation,
and
possibility
of
bacterial
growth.
In
this
study,
SS
was
coated
copper-doped
Titanium
Nitride
(Ti–Cu–N)
using
DC
Sputtering
technique.
This
Ti–Cu–N
film
improved
antibacterial
performance
mechanical
properties
L.
films
were
deposited
reactive
sputtering
an
80%:20%
argon
to
nitrogen
ratio.
source
voltage
current
kept
constant
at
10
kV
mA,
respectively.
X-Ray
Diffraction
(XRD)
showed
that
phases
formed
TiN
Cu
FCC
crystal
structure.
Results
show
surfaces
samples
containing
44.34
wt%
54.97
had
effectiveness
against
Staphylococcus
aureus
(S.
Aureus).
highest
hardness
value
a
layer
212.032
Vickers
Hardness
Number
(VHN),
which
improvement
36.63%
on
raw
material
(155.18
VHN).
Surface
morphology
analysis
SEM-EDS
performed
before
after
test
investigate
mechanism
S.
Aureus.
Nanotechnology,
Год журнала:
2023,
Номер
35(11), С. 115401 - 115401
Опубликована: Дек. 8, 2023
This
research
article,
explores
the
influence
of
an
inclined
magnetic
field
on
fluid
flow
over
a
permeable
stretching/shrinking
surface
with
heat
transfer.
The
study
use
water
as
conventional
base
fluid,
graphene
oxide
(GO)
and
Aluminum
(Al2O3)
nanoparticles
submerged
to
create
nanofluid,
system
governing
nonlinear
partial
differential
equations
converted
into
ordinary
via
suitable
similarity
conversions.
allow
for
unique
solution
stretching
sheet/shrinking
sheets
be
obtained,
along
corresponding
temperature
in
terms
hypergeometric
function,
several
parameters
are
included
investigation
their
contribution
is
graphically
explained
examine
physical
characteristics
such
radiation,
field,
domain,
volume
fraction
parameter,
jump.
Increasing
thermal
radiation
increases
boundary
layer,
increasing
parameter
inverse
Darcy
number
decays
velocity
profile.
present
work
has
many
useful
applications
engineering,
biological
sciences,
well
cleaning
engine
lubricants
thrust-bearing
technologies.
Frontiers in Bioengineering and Biotechnology,
Год журнала:
2023,
Номер
11
Опубликована: Июль 27, 2023
In
recent
years,
massive
bacterial
infections
have
led
to
human
illness
and
death,
reminding
us
of
the
urgent
need
develop
effective
long-lasting
antimicrobial
materials.
this
paper,
Ag-TiO2/ZIF-8
with
good
environmental
friendliness
biological
antibacterial
activity
was
prepared
by
solvothermal
method.
The
structure
morphology
synthesized
materials
were
characterized
XRD,
FT-IR,
SEM-EDS,
TEM,
XPS,
BET.
To
investigate
samples,
Escherichia
coli
Bacillus
subtilis
used
as
target
bacteria
for
experimental
studies
zone
inhibition,
growth
curves,
minimum
bactericidal
concentration
durability.
results
demonstrated
that
20
wt.%Ag-TiO2/ZIF-8
had
best
bacteriostatic
effect
on
E.
B.
under
dark
UV
conditions
compared
TiO2
ZIF-8.
Under
same
conditions,
diameter
inhibition
circle
wt%
is
8.5-11.5
mm
larger
than
its
constituent
material
4
Ag-TiO2,
more
obvious
better
performance.
It
also
proposed
excellent
due
synergistic
Ag-TiO2
ZIF-8
light.
addition,
has
stability
durability
5
months.
Coatings,
Год журнала:
2023,
Номер
13(3), С. 572 - 572
Опубликована: Март 7, 2023
Investigating
the
failure
mechanism
of
solder
joints
under
different
temperature
conditions
is
significant
to
ensure
service
life
a
printed
circuit
board
(PCB).
In
this
research,
stress
and
strain
distribution
PCB
joint
was
evaluated
by
high-
low-temperature
thermal
shock
tests.
The
cross-section
after
testing
measured
using
3D
stereoscopic
microscope
SEM
equipped
with
EDS.
microstructure
lead-free
phase
intermetallic
compound
(IMC)
layer
were
studied
XRD.
working
state
simulated
analyzed
finite
element
method.
results
show
that
has
great
effect
on
reliability
joints.
location
actual
crack
consistent
maximum
stress–strain
concentration
area
joint.
brittle
Cu6Sn5
Cu3Sn
phases
at
interface
accelerate
Limiting
growth
can
improve
certain
extent.
International Journal of Electrochemical Science,
Год журнала:
2023,
Номер
18(7), С. 100186 - 100186
Опубликована: Май 9, 2023
2099
aluminum
lithium
alloy
is
anodized
in
sulfuric
acid
electrolyte,
and
then
sealed
boiling
water,
silicate
solution
titanium
salt
respectively
to
further
improve
the
corrosion
resistance.
The
experimental
results
show
that
a
porous
film
formed
on
surface
of
alloy.
morphology
composition
are
changed
significantly
after
being
solution,
resulting
enhancement
effect
sealing
better
than
water.
There
fewer
pores
treatment
which
has
best
solution.
After
shows
It
found
an
environmental
friendly
can
resistance
