Micro and Nano Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 100266 - 100266
Published: May 27, 2024
Generally
speaking,
energy
harvesting
is
an
up-to-date
technology
that
describes
the
possibility
of
capturing
small
amounts
(thermal,
solar,
or
mechanical)
from
surroundings
and
storing
them
as
electrical
for
later
uses
when
needed.
Among
systems,
use
piezoelectric
thin
films
coatings
gaining
increasing
interest
both
academic
industrial
communities,
these
systems
allow
design
development
micro-
nano-scale
devices,
thanks
to
being
micromachined
added
functionality
offered
by
electromechanical
coupling.
These
peculiarities
justify
their
different
applications,
ranging
high
density
harvesters
sensitivity
sensors,
even
low
power
consumption
large
displacement
actuators.
Further,
current
focus
research
on
shifting
fully
inorganic
hybrid
organic-inorganic
(i.e.,
composite)
latter
can
offer
higher
flexibility
lower
stiffness),
making
more
sensitive
vibrations
therefore
suitable
specific
conditions.
In
this
regard,
photoinduced
polymerization
(the
so-called
"UV-curing")
has
become
a
reliable
technique
manufacturing
composite
it
solvent-free
approach
allows
transforming
liquid
mixture
monomers/oligomers
into
solid
3D
network
in
few
seconds,
with
very
limited
conversion.
Besides,
UV-curing
process
fast,
dispersed
ceramic
phase
not
prone
settle
down
resin,
hence
ensuring
its
homogeneous
distribution
within
polymer
after
curing
better
performance.
The
present
review
aims
provide
reader
overview
UV-curable
purposes,
highlighting
potential
features;
further,
some
perspectives
about
possible
future
developments
will
be
proposed.
FlexMat.,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 25, 2024
Abstract
Structural
health
monitoring
(SHM)
has
been
increasingly
investigated
for
decades.
Different
physical
principles
have
developed
damage
identification,
such
as
electronics,
mechanics,
magnetics,
etc.,
with
different
coverage
(i.e.,
global,
large‐area,
and
local
monitoring)
sensitivity.
Mechanical
acousto‐ultrasonic‐based
methods
formed
a
big
family
in
SHM
technologies.
Multiple
wave/resonance
modes
utilized
versatile
tasks.
The
permanently
integrated
sensing
networks
play
significant
role
achieving
cost‐effective
reliable
system,
major
concerns
including
weight
increase
large‐scale
deployment
conformity
complex
geometry
structures.
In
this
review,
typical
acousto‐ultrasonic
sensors
made
of
material
systems
are
discussed,
along
advantages
limitations.
Moreover,
advanced
network
installation
introduced,
surface‐mounting
pre‐integrated
on
substrates
situ
printing,
embedding
composite
layup
metal
additive
manufacturing.
Sensor
versatility
usage
multi‐scale
techniques
then
highlighted.
transmitted
received
corresponding
elements
designs.
conclusion,
systematic
review
mainly
covers
collection
sensors,
two
modalities
installation,
their
employment
various
methods,
hopefully
providing
useful
guide
to
building
lightweight
conformal
passive
or
active‐passive
developing
complete
strategies
by
integrating
identification
multiple
scales.
Composite Structures,
Journal Year:
2024,
Volume and Issue:
337, P. 118062 - 118062
Published: March 24, 2024
In
the
quest
for
eco-friendly
alternatives
within
materials
science,
development
of
sustainable
and
non-toxic
piezoelectric
composites
is
utmost
importance.
This
study
undertakes
a
computational
exploration
to
elucidate
influence
phase
connectivity
on
engineering
performance
lead-free
piezocomposites.
Employing
combination
analytical
numerical
methodologies,
we
critically
evaluated
various
figures
merit
across
different
microstructural
configurations,
juxtaposing
these
findings
with
traditional
lead
zirconate
titanate
(PZT)-based
materials.
Our
analysis
considers
0-3
1-3
patterns,
incorporating
active
phases
in
form
spherical
particles
cylindrical
fibers.
We
also
examine
impact
carbon
nanotubes
(CNTs)
enhancing
polymeric
matrix,
which
introduces
potential
network
percolation
further
mechanical
electrical
property
optimization.
The
yields
pivotal
insights
into
piezocomposites,
direct
implications
their
application
sensing,
actuating,
energy
harvesting
domains.
ascertain
that
electromechanical
contingent
upon
pattern
proportion
phase.
Notably,
KNNS-BNZH
&
Polyethylene
composite
demonstrates
exceptional
while
BTO
PVDF
distinguishes
itself
superior
dielectric
responses
varying
volume
fractions.
strategic
infusion
CNTs
PDMS
matrix
emerges
as
significant
enhancer
attributes,
albeit
improvements
are
specific
type
coefficient
CNT
concentration.
investigation
underscores
nuanced
interplay
between
design
reinforcing
critical
role
factors
play
advancement
effective
eco-conscious
