Organic-inorganic PVA/Carbon microwave absorption composites: tuning rheology to enable structurally diverse fabrication
Carbon,
Год журнала:
2025,
Номер
unknown, С. 120057 - 120057
Опубликована: Янв. 1, 2025
Язык: Английский
Lessons from Nature: Advances and Perspectives in Bionic Microwave Absorption Materials
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Дек. 30, 2024
Inspired
by
the
remarkable
electromagnetic
response
capabilities
of
complex
morphologies
and
subtle
microstructures
evolved
natural
organisms,
this
paper
delves
into
research
advancements
future
application
potential
bionic
microwave-absorbing
materials
(BMAMs).
It
outlines
significance
achieving
high-performance
through
ingenious
microstructural
design
judicious
composition
selection,
while
emphasizing
innovative
strategies
offered
manufacturing.
Furthermore,
work
meticulously
analyzes
how
inspiration
can
be
drawn
from
intricate
structures
marine
plants,
animals,
non-metallic
minerals
in
nature
to
devise
develop
BMAMs
with
superior
wave
absorption
properties.
Additionally,
provides
an
in-depth
exploration
theoretical
underpinnings
BMAMs,
particularly
latest
breakthroughs
broadband
absorption.
By
incorporating
advanced
methodologies
such
as
simulation
modeling
gradient
design,
we
unravel
scientific
principles
governing
microwave
mechanisms
thereby
furnishing
a
solid
foundation
for
understanding
optimizing
their
performance.
Ultimately,
review
aims
offer
valuable
insights
researchers
related
fields,
fostering
collective
advancement
on
BMAMs.
Язык: Английский
Preparation of Robust, Antireflective and Superhydrophobic Hierarchical Coatings on PMMA Substrates via Mechanical Locking and Chemical Bonding
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Antireflection
(AR)
coatings
with
mechanical
robustness
and
superhydrophobic
properties
have
wide
potential
applications
in
optical,
electronic,
automotive
fields.
However,
the
fabrication
of
large-sized,
robust,
multifunctional
AR
on
plastic/polymer
substrates
has
been
a
challenging
problem.
In
this
study,
we
developed
bottom-up
approach
to
produce
mechanically
enhanced
transmittance,
poly(methyl
methacrylate)
(PMMA)
substrate.
Their
structure
is
composed
two
layers:
acid-catalyzed
silica
base-catalyzed
nanoparticles
construct
three-dimensional
porous
as
top
layer;
connecting
layer
consists
monolayer
mesoporous
(MSNs)
that
are
partially
embedded
PMMA
The
lower
part
locked
substrate
by
organic
vapor
phase
treatment,
while
upper
chemically
bonded
layer,
forming
solid
double-layer
structure.
Finally,
surface
treated
chemical
deposition
hexamethyldisilazane
(HMDS).
obtained
coating
exhibits
outstanding
light
transmission
(Tave:
98.96%
wavelength
range
400–800
nm),
superhydrophobicity
(water
contact
angle
(WCA):
157.6°,
rolling
(RA):
3.3°),
(pencil
hardness:
4H),
weather
resistance
(3
months
outdoor
exposure).
This
work
offers
novel
synthesis
polymer
robust
properties.
Язык: Английский
Neural network–enabled accelerated discovery of multifunctional metamaterials for adaptive multispectral stealth applications
Materials Today Physics,
Год журнала:
2025,
Номер
52, С. 101696 - 101696
Опубликована: Март 1, 2025
Язык: Английский
Flexible and broadband microwave-absorbing metastructure with wide-angle stability
Journal of Applied Physics,
Год журнала:
2024,
Номер
136(23)
Опубликована: Дек. 16, 2024
Flexible
and
broadband
microwave-absorbing
structures
have
attracted
significant
attention
in
electromagnetic
(EM)
science.
Although
previous
studies
demonstrated
the
potential
of
flexible
using
thin
dielectric
substrates
or
materials,
need
for
remains
largely
unmet,
especially
those
that
can
be
stretched
to
adapt
complex
surfaces.
In
this
article,
a
novel
design
concept
stretchable
meta-substrate
comprising
rigid
pyramidal
soft
hinges
is
proposed,
which
operates
as
substrate
structural
support
metastructure.
The
proposed
metastructure
composed
unit
meta-substrate,
exhibits
reflection
coefficient
lower
than
−20
dB
from
2.2
20
GHz
under
normal
incidence.
By
overcoming
mechanical
limitations
efforts
with
material-based
structure,
40%
strain,
while
−10
spectrum
only
shifts
by
1.1
GHz.
Furthermore,
stable
absorption
properties
EM
wave
irradiation
both
transverse
electric
magnetic
polarizations,
even
at
an
oblique
incident
angle
up
70°.
As
proof
concept,
conformally
pasted
on
unmanned
aerial
vehicle
surface,
maximum
radar
cross
section
reduction
30.5
larger
conventional
device.
fabricated
sample
readily
applied
carrying
deployment,
applications
fields
stealth
well
anti-interference.
Язык: Английский