Composites Part B Engineering,
Journal Year:
2024,
Volume and Issue:
272, P. 111203 - 111203
Published: Jan. 5, 2024
Selective
laser
melting
(SLM)
of
multi-material
structures
(MMS)
is
significance
because
it
allows
for
bespoke
structural
innovation
and
high-accuracy
process
tailoring.
However,
most
the
currently
developed
loose
powder-based
SLM
techniques
MMS
are
limited
by
long
changeover
time
potential
cross-contamination
between
materials.
To
address
these
issues,
a
novel
Metal
Additive
Manufacturing
using
Powder
Sheets
(MAPS)
technique
proposed
printing
within
single
process.
It
utilizes
flexible
powder
sheets
as
feedstock
material,
which
composed
metal
powder-polymer
binder
composites.
The
printability
MAPS
assessed
through
fabrication
three-phase
SS304-IN718-SS304
composites
with
increased
geometric
dimensions
on
SS316
baseplates.
effects
part
size
evolution
melt-pool
morphology
formation
defects
during
investigated
experimental
characterizations
computational
modeling.
results
show
that
when
fabricating
larger
MMS,
use
longer
scan-vector
easily
leads
to
such
lack-of-fusion
porosity,
balling
cracks.
This
due
duration
inter-hatch
cooling
time,
reduced
amount
thermal
accumulation
higher
degree
residual
stresses.
By
adopting
an
island
scanning
strategy,
defect-free
large-size
variations
chemical
composition,
microstructure
microhardness
successfully
printed
MAPS.
method
offers
new
solution
producing
high-quality
MMS.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Journal Year:
2023,
Volume and Issue:
141, P. 105751 - 105751
Small,
Journal Year:
2024,
Volume and Issue:
20(27)
Published: Feb. 2, 2024
Abstract
Flexible
actuators
with
excellent
adaptability
and
interaction
safety
have
a
wide
range
of
application
prospects
in
many
fields.
However,
current
flexible
problems
such
as
fragility
poor
actuating
ability.
Here,
inspired
by
the
features
nacre
structure,
gradient
structured
actuator
is
proposed
mechanical
robustness
self‐healing
By
introducing
dynamic
boronic
ester
bonds
at
interface
between
MXene
nanosheets
epoxy
natural
rubber
matrix,
resulting
nanocomposites
ordered
micro‐nano
structures
exhibit
tensile
strength
(25.03
MPa)
satisfactory
repair
efficiency
(81.2%).
In
addition,
distribution
structure
endows
stable
photothermal
conversion
capability,
which
can
quickly
respond
to
near‐infrared
light
stimulation.
The
interlayer
covalent
bond
crosslinking
enables
good
response
speed
after
multiple
bending
capable
functional
damage.
This
work
introduces
bonding
into
actuators,
provides
reference
for
fabrication
soft
robots,
wearable,
other
healable
materials.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Journal Year:
2024,
Volume and Issue:
152, P. 106406 - 106406
Biomimetics,
Journal Year:
2025,
Volume and Issue:
10(1), P. 33 - 33
Published: Jan. 8, 2025
Mycelium-based
composites
(MBCs)
are
highly
valued
for
their
ability
to
transform
low-value
organic
materials
into
sustainable
building
materials,
offering
significant
potential
decarbonizing
the
construction
sector.
The
properties
of
MBCs
influenced
by
factors
such
as
mycelium
species,
substrate
fabrication
growth
parameters,
and
post-processing.
Traditional
methods
involve
combining
grain
spawn
with
loose
substrates
in
a
mold
achieve
specific
single
functional
properties,
strength,
acoustic
absorption,
or
thermal
insulation.
However,
recent
advancements
have
focused
on
digital
biofabrication
optimize
MBC
expand
application
scope.
Despite
these
developments,
existing
research
predominantly
explores
use
inoculation,
little
focus
liquid
spawn.
Liquid
spawn,
however,
holds
potential,
particularly
biofabrication,
due
its
ease
deposition
greater
precision
compared
grains.
This
paper,
part
framework,
investigates
kinetics
Ganoderma
lucidum
Pleurotus
ostreatus
hemp
non-woven
mats,
flexibility
mold-free
using
inoculation.
By
integrating
biofabricated
researchers
can
develop
more
sustainable,
efficient,
specialized
solutions
fewer
resources,
enhancing
adaptability
functionality
MBCs.
experiment
involved
pre-cultivating
P.
G.
yeast
peptone
dextrose
(YPD)
complete
media
(CYM)
under
static
(ST)
shaking
(SH)
conditions.
Four
dilutions
(1:10,
1:2,
1:1,
2:1)
were
prepared
analyzed
through
imagery
assess
kinetics.
Results
showed
that
lower
promoted
faster
full
coverage,
while
higher
offered
slower
partial
coverage.
SH
conditions
resulted
slightly
coverage
growth.
To
control
material
within
system,
it
is
recommended
CYM
ST
YPD
lucidum,
curves
show
clear
separation
between
dilutions,
reflecting
distinct
efficiencies
speeds
be
selected
desired
outcomes.
Communications Engineering,
Journal Year:
2025,
Volume and Issue:
4(1)
Published: Feb. 23, 2025
Modern
engineering
demands
materials
that
combine
mechanical
robustness
with
effective
electromagnetic
wave
absorption,
driven
by
advancements
in
wireless
communication,
radar
technologies,
and
smart
infrastructure.
Here,
we
construct
a
gradient
cement
paste
layering
slurries
varying
concentrations
of
carbon
nanotubes.
This
design
enhances
toughness
impact
resistance
optimizing
microstructural
features
interfacial
interactions,
which
facilitate
efficient
load
transfer
stress
delocalization.
Additionally,
the
structure
improves
absorption
performance
through
optimized
impedance
matching
multiple
loss
mechanisms,
including
reflections,
scattering,
reabsorption
waves
within
material.
These
synergistic
properties
position
pastes
as
promising
high-performance,
multifunctional
for
mitigating
pollution
advancing
next-generation
Yihao
Xiao
co-authors
present
variable
nanotube
concentration.
Their
demonstrates
improved
toughness,
resistance,
simplified
matching.
