Coatings,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1572 - 1572
Published: Dec. 16, 2024
To
improve
lubricant
performance
and
extend
the
service
life
of
machinery,
friction
reduction
anti-wear
nano-cerium
oxide
(nano-CeO2)
nitrogen-containing
heterocyclic
borate
(BNH2)
composite
additives
were
studied
in
this
work,
with
goal
obtaining
better
lubrication
effects
than
a
single
additive.
The
results
showed
that
nano-CeO2
modified
Span80
had
good
dispersion
stability
base
oil.
optimal
addition
mass
fractions
BNH2
0.6
wt%
1.0
wt%,
respectively.
Compared
oil,
reduced
coefficient
by
44.9%
wear
spot
diameter
27.8%,
while
49.1%
32.8%.
additions
BNH2,
compound
nano-CeO2/BNH2
further
improved
lubricating
0.8
nano-CeO2/1.0
additive
55.9%
abrasive
48%.
Physicochemical
analysis
surface
revealed
combination
excellent
synergistic
effects.
generated
films
contained
chemical
reactive
layer
organic
nitride
(C–N),
Fe2O3,
FeO,
B2O3
physical
adsorbent
CeO2
provided
great
during
friction.
Lubricants,
Journal Year:
2025,
Volume and Issue:
13(2), P. 56 - 56
Published: Jan. 29, 2025
The
enhancement
of
tribological
properties
represents
a
pivotal
strategy
for
achieving
energy
efficiency
and
environmental
protection.
Titanium
dioxide
(TiO2)
nanomaterials
have
been
garnering
significant
attention
due
to
their
exemplary
the
abundance
titanium
reserves.
present
review
is
concerned
with
study
TiO2
in
lubricants.
various
synthesis
methods
are
presented.
dispersion
stability
these
lubricating
oils
discussed
depth,
as
well
strategies
improve
stability,
such
enhancing
compatibility
base
oils,
reducing
dynamic
light
scattering
(DLS)
particle
size,
modulating
zeta
potential,
optimizing
drying
step.
Aggregation
instability
remain
key
challenges
nanomaterials,
especially
bare
nanoparticles
(NPs).
In
contrast,
situ
surface-modified
NPs
show
improved
performance,
offering
promise
further
research.
performance
lubricants
has
demonstrated
be
enhanced
by
observed
attributed
synergistic
effect
multiple
mechanisms,
including
rolling,
patching,
polishing,
formation
protective
film.
Furthermore,
future
research
suggestions
proposed
provide
reference
design
high-performance
nano-lubricants
promote
wide
application.
Surface Innovations,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 13
Published: Jan. 23, 2025
Metal–organic
frameworks
(MOFs),
as
lubricant
additives,
have
remarkable
potential
in
super
lubrication
performance
because
of
their
big
surface
area,
tunable
chemistry,
load-bearing
capacity,
corrosion
protection,
and
environmental
friendliness.
However,
only
a
small
number
MOFs
are
capable
melting.
In
this
paper,
zeolitic
imidazolate
framework-8
(ZIF-8)
nanoparticles
(diameter
100
nm)
were
practically
produced
incorporated
with
hydrophobic
ionic
liquid
(IL)
to
develop
novel
high-performance
MOFs-based
ZIF-8@IL
nanolubricant
additive.
Then,
reciprocating
tribological
experiments
conducted
across
range
concentrations
addition
the
150
SN
base
oil.
With
respect
using
plain
oil,
use
exhibits
very
good
optimized
case
was
achieved
incorporation
4.0
wt.%
additive,
resulting
decrease
about
27%
coefficient
friction
20%
wear
track
width.
The
notable
achievement
is
due
collective
effects
rolling,
mending,
polishing,
tribofilm
formation.
addition,
demonstrated
an
obvious
inhibition
oxidational
wear.
findings
study
offer
valuable
insights
promote
development
high-efficient
MOFs-core
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
With
the
rapid
development
of
modern
industry,
traditional
lubricants
often
require
a
variety
additives
to
be
used
in
conjunction
with
each
other,
which
not
only
increases
cost
but
also
causes
waste
resources.
Therefore,
lubricant
additive
both
dyeing
function
and
an
antiwear
friction
reduction
performance
can
more
effectively
meet
industrial
needs.
Cerium
sulfide
(Ce2S3),
its
excellent
photostability,
weather
resistance,
thermal
stability,
nontoxicity,
shows
great
potential
as
environmentally
friendly
pigment.
However,
methods
for
synthesizing
Ce2S3
are
typically
hindered
by
high-temperature
requirements
toxicity
issues,
limits
broad
application
lubricants.
To
overcome
these
limitations,
this
study
employed
liquid-phase
method
under
mild
conditions
synthesize
oleylamine-modified,
wrinkle-free
nanosheets
(OA-Ce2S3
NSs).
The
friction-reducing
properties
OA-Ce2S3
NSs
poly
alpha-olefin-6
base
oils
were
evaluated
various
four-ball
tribometer.
Experimental
results
indicate
that
significantly
enhance
forming
physical
adsorption
film
ultra
thick
tribochemical
reaction
(with
typical
thickness
350
nm
maximum
up
700
nm)
on
surface.
Furthermore,
elucidates
lubrication
mechanism
proposes
their
sliding
surfaces.
This
research
highlights
provides
future
directions
optimizing
synthesis
multifunctional
applications,
offering
new
insights
into
field
science.
Polymers,
Journal Year:
2024,
Volume and Issue:
16(10), P. 1334 - 1334
Published: May 9, 2024
In
this
paper,
the
solid-state
shear
milling
(S3M)
strategy
featuring
a
very
strong
three-dimensional
stress
field
was
adopted
to
prepare
high-performance
polyoxymethylene
(POM)/molybdenum
disulfide
(MoS2)
functional
nanocomposite.
The
transmission
electron
microscope
and
Raman
measurement
results
confirmed
that
bulk
MoS2
particle
successfully
exfoliated
into
few-layer
nanoplatelets
by
above
simple
S3M
physical
method.
polarized
optical
(PLM)
observation
indicated
pan-milled
nanoscale
particles
presented
better
dispersion
performance
in
POM
matrix.
of
tribological
test
incorporation
could
substantially
improve
wear
resistance
POM.
Moreover,
nanosheets
further
decrease
friction
coefficient
Scanning
observations
on
worn
scar
revealed
mechanism
POM/MoS2
nanocomposite
prepared
milling.
tensile
showed
has
much
higher
elongation
at
break
than
conventionally
melt-compounded
material.
shows
promising
prospect
preparation
with
excellent
comprehensive
large
scale.
Sensors,
Journal Year:
2025,
Volume and Issue:
25(2), P. 437 - 437
Published: Jan. 13, 2025
Solid–liquid
lubrication
systems
have
been
widely
used
to
enhance
tribological
behaviors.
Alongside
offering
exceptional
and
wear-resistance
performance,
the
active
control
of
behavior
in
accordance
with
service
conditions
is
equally
critical.
To
achieve
this
goal,
accurately
monitoring
condition
system
fundamental.
This
review
article
aims
provide
a
fundamental
understanding
different
sensors
for
lubricants,
as
well
friction
wear
properties.
Specifically,
suitable
engineering
applications
are
detailed
introduced.
Through
review,
we
wish
researchers
mechanical
clear
technical
overview,
which
can
guide
design
intelligent
sensors.
Journal of Tribology,
Journal Year:
2025,
Volume and Issue:
147(4)
Published: Jan. 21, 2025
Abstract
To
investigate
the
lubrication
mechanism
of
carbon
nanospheres
and
compare
their
tribological
performance
with
powder,
this
study
presented
a
comprehensive
analysis
potential
as
lubricant
additives
through
both
experimental
testing
molecular
dynamics
simulations.
Carbon
were
synthesized
using
hydrothermal
method.
Extensive
comparisons
conducted
between
powder
nanospheres,
focusing
on
material
characterization,
dispersion
stability,
antifriction
performance,
antiwear
capability.
Findings
revealed
that
outperformed
in
polyalphaolefin
10
(PAO
10)
owing
to
smaller
particle
size
spherical
shape.
Specifically,
at
concentration
1
wt%,
load
50
N,
disk
speed
rpm,
temperature
25
°C,
addition
reduced
friction
coefficient
by
34%
wear
volume
35%.
The
improved
was
linked
ability
fill
pits,
improving
interface
smoothness.
Molecular
simulation
effectively
reflected
substrate
roughness
bulk
region
further
confirmed
filling
effects
increased
lubricant's
load-bearing
capacity,
which
contributed
reduction
wear.
This
provided
significant
insights
into
development
innovative
high-performance
for
oil-based
metal
pairs.
