Journal of Magnesium and Alloys,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 1, 2024
The
difficulty
in
achieving
a
balance
between
photocatalytic
efficiency
and
chemical
robustness
has
been
barrier
to
the
broad
use
of
MgO
as
versatile
material,
mainly
because
its
restricted
surface
activity.
To
overcome
this,
novel
modification
technique
is
proposed.
It
involves
integration
highly
stable
SnO2
WO3
nanoparticles,
which
are
known
enhance
This
approach
aims
achieve
an
optimal
stability
by
finely
tuning
structure-surface
reactivity
relationship.
utilizes
plasma
electrolytic
oxidation
(PEO)
method.
In
this
method,
both
AZ31
Mg
alloy
substrate
SnO2/WO3
precursors
undergo
simultaneous
oxidation.
induced
high-energy
generated
through
high
voltage.
results
demonstrate
that
process
yields
layer
with
homogeneous
dispersion
significantly
enhancing
overall
performance.
Corrosion
measurements
demonstrated
enhanced
electrochemical
against
chloride
ions.
dual
incorporation
resulted
hybrid
film
exhibiting
corrosion
current
density
value
7.57
×
10−11
A/cm2
outer
resistance
5.17
107
Ω.cm2.
Additionally,
nanoparticles
enhances
activity
towards
tetracycline
degradation.
89.54
%
within
2
h
exposure
visible
light
using
BA-W-Sn
sample,
outperforms
other
samples.
integrated
strategy
enables
study
contribute
expanding
practical
applications
MgO-based
materials.
does
so
simultaneously
their
stability.
Materials,
Год журнала:
2025,
Номер
18(4), С. 747 - 747
Опубликована: Фев. 8, 2025
This
study
investigated
the
influence
of
plasma
electrolytic
oxidation
(PEO)
preparation
time
on
degradation
resistance
Mg-1Zn
(Z1)
and
Mg-1Zn-0.4Ca
(ZX10)
alloys,
with
comparisons
to
pure
Mg
commercial
Mg-4Y-3RE-0.4Zr
(WE43).
PEO
layers
were
formed
varying
times
(5,
10,
15
min)
analyzed
for
microstructure,
morphology,
corrosion
resistance.
The
results
indicated
that
a
10
min
had
most
homogeneous
structure
optimal
Prolonged
increased
pore
density,
crack
formation,
layer
thickness
while
also
promoting
during
extended
immersion
in
0.9%
NaCl
corrosive
media.
dissolution
phosphates
from
contributes
formation
protective
layer,
enhancing
long-term
These
findings
demonstrate
low-alloyed,
biocompatible
Mg-Zn(-Ca)
alloys
can
achieve
comparable
high-performance
WE43
through
appropriate
surface
treatment.
Ceramics International,
Год журнала:
2024,
Номер
50(17), С. 29703 - 29710
Опубликована: Май 18, 2024
In
this
study,
the
mechanical
behavior
and
biocompatibility
of
plasma
electrolytic
oxidation
(PEO)-coated
Mg-Zn-Ca
alloy
specimens
were
investigated.
The
coatings
synthesized
by
incorporating
KMnO4
Mn3O4
nanoparticles
into
an
solution.
An
indentation
test
revealed
a
significant
increase
in
reduced
elastic
modulus
PEO
with
incorporated
under
various
loads.
This
was
attributed
to
higher
coating
thickness
porosity
achieved
addition
Mn-based
additives
electrolyte.
composite
prepared
exhibited
more
pronounced
reduction
pressure.
Wettability
tests
showed
that
maintained
their
hydrophilic
nature
water
contact
angles
range
25–63º.
presence
provided
conducive
environment
for
cell
viability.
enhanced
electrolyte
particularly
noteworthy.
improvement
controlled
release
Mn
ions,
which
generates
microenvironment
favors
cellular
activities.
study
enhances
properties,
preserves
hydrophilicity,
improves
biocompatibility,
thus
indicating
its
potential
orthopedic
implant
applications.
