Journal of Chemistry and Technologies,
Год журнала:
2023,
Номер
31(3), С. 581 - 589
Опубликована: Окт. 28, 2023
У
цій
роботі
обговорюється
вплив
шорсткості
поверхні
та
фізико-хімічних
властивостей
на
початкову
адгезію
фосфатів
до
сталі.
Зразки
сталі,
використані
в
цьому
дослідженні,
виготовлені
з
низьколегованої
сталі
A36.
Фосфат
був
видобутий
районі
Бен-Гурір-Марокко
і
використовувався
у
вигляді
гранул,
спресованих
під
різними
тисками.
Сталеву
поверхню
обробляли
двома
методами
попередньої
обробки
–
хонінгуванням
горизонтальним
фрезеруванням.
Досліджено
цих
процедур
морфологію
поверхні,
шорсткість,
поверхневу
енергію
гідрофобність.
Вимірюючи
кут
контакту
поверхнях
фосфатних
гранул
підкладок
А36,
ми
змогли
визначити
деякі
фізико-хімічні
параметри
розрахувавши
енергію.
Крім
того,
шорсткість
кожного
сталевого
зразка
була
досліджена
за
допомогою
вимірювача
металургійного
мікроскопа.
Отримані
результати
показали,
що
фосфатована
поверхня
піддається
впливу
дисперсійних
сил
має
гідрофільний
характер.
Для
поверхонь
різних
зі
А36
добре
досліджено
шорсткості,
отримано
мінімальну
як
для
(хонінгування
горизонтального
фрезерування),
так
визначеної
шорсткості.
Цей
результат
може
бути
використаний
підготовки
мінімальною
поверхневою
енергією
мінімізації
енергії
руйнування
і,
отже,
адгезії
засмічення
фосфатами
Advanced Engineering Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Icephobicity
encompasses
a
multifaceted
definition
that
necessitates
evaluations
across
various
scales,
from
single
droplets
to
larger
ice
specimens.
The
predominant
method
for
evaluating
icephobicity
performance
is
adhesion
strength
(IAS)
testing.
Multiple
geometries
and
scales
testing
are
proposed.
conventional
key
parameter
derived
this
test
analysis
the
peak
detachment
force
value,
which
subsequently
converted
IAS
(stress).
Recent
studies
raise
questions
regarding
approach
challenge
its
adequacy
comprehensive
assessment.
To
achieve
more
profound
understanding
of
phenomena
involved,
study
utilizes
three
distinct
benches,
all
in
horizontal
shear
geometry
but
under
varying
conditions.
findings
indicate
values
do
not
necessarily
reflect
actual
behavior.
However,
versus
time
evolution
(obtained
force–time
plots)
can
provide
valuable
insights
into
icephobicity,
including
viscoelastic
response
coatings
underlying
failure
mechanisms.
beneficial
aspects
additionally
validated
context
investigating
coating
durability
through
consecutive
(icing/ice
detachment)
cycles,
wherein
methodologies,
such
as
wetting
morphological
parameters,
fail
capture
deterioration.
Abstract
Unmanned
aerial
vehicles
(UAVs)
are
promising
platforms
for
operations
in
alpine
regions
due
to
their
compact
size,
advanced
camera
systems,
and
ability
take
off
land
confined
areas.
In
such
conditions,
one
of
the
most
significant
challenges
UAVs
is
operating
icing
environments,
as
ice
accretion
can
compromise
aerodynamics
propellers
potentially
lead
fto
a
loss
control
vehicle
failure.
To
date,
active
de‐icing
solutions,
electrothermal
have
been
employed
aeronautical
sector;
however,
these
systems
energy‐intensive.
This
review
addresses
passive
protection
from
material
science
prospective,
by
focusing
on
coatings
which
mitigate
formation
without
energy
consumption.
A
comprehensive
description
strategies
design
an
icephobic
surface
presented
state‐of‐the‐art
analyzed,
superhydrophobic
surfaces,
elastomers,
liquid
infused
gels,
polyelectrolytes,
sol
gel
coatings,
metal‐organic
frameworks.
key
focus
devoted
characterizations
assessing
mitigation
i.e.,
contact
angle
hysteresis
measurements,
correlation
between
durability
number
cycles.
The
relevant
solutions
described
final
part
this
review.
Coatings,
Год журнала:
2025,
Номер
15(5), С. 612 - 612
Опубликована: Май 21, 2025
Anti-icing
and
de-icing
technologies
are
crucial
in
modern
aviation,
with
optimising
ice
adhesion
performance
on
material
surfaces
being
a
key
challenge.
This
study
proposes
straightforward
method
for
fabricating
hydrophobic
silicone
rubber
using
mesh
to
construct
microstructures.
The
influence
of
microstructure
size
anisotropy
surface
wettability
is
systematically
investigated.
experimental
results
demonstrate
that
introducing
microstructures
significantly
enhances
the
hydrophobicity
surfaces,
achieving
maximum
static
contact
angle
149.3
±
1.3°.
For
identical
shapes,
dimensional
variations
affect
roughness
functional
performance.
Although
structure
most
significant
dimension
(600#-SR)
exhibits
highest
roughness,
smaller
structures
(e.g.,
1400#-SR)
superior
lower
strength,
likely
due
enhanced
air
entrapment
reduced
effective
solid–liquid
solid–ice
areas.
Furthermore,
anisotropic
microstructures,
marked
directional
difference
strength
observed:
lowest
X
direction
38.6
kPa,
compared
63.3
kPa
Y
direction.
Fine-tuning
configuration
effectively
minimises
enables
targeted
optimisation
properties.
research
offers
theoretical
support
developing
innovative,
energy-efficient
materials
anti-icing
properties
provides
new
insights
crafting
solutions
tailored
various
needs.
Advanced Materials Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 1, 2024
Abstract
In
response
to
the
hazards
of
icing
in
energy,
transportation,
and
aerospace
sectors,
extensive
research
has
been
conducted
on
anti‐icing
materials
based
solid‐liquid/ice
interface
theory,
as
well
reliable
chemical
electro‐thermal
de‐icing
systems.
However,
there
is
an
urgent
need
for
modernizing
systems
address
diverse
application
scenarios.
Gaining
insights
into
influence
action
forces
water
droplet
behavior
can
proactively
prevent
detrimental
occurrences.
Nevertheless,
under
severe
conditions
where
ice
formation
inevitable,
leveraging
induce
cracking
expansion
facilitates
its
rapid
detachment
despite
potential
challenges
associated
with
complete
removal.
A
comprehensive
review
elucidating
mechanisms
through
which
impact
water/ice
formations
encompasses
various
approaches
toward
designing
mechanically‐driven
Materials,
Год журнала:
2024,
Номер
18(1), С. 84 - 84
Опубликована: Дек. 28, 2024
In
some
occasions,
outdoor
steel
structures
like
wind
towers,
bridges,
winter
sports
facilities,
and
so
on
are
subjected
to
extreme
environmental
conditions
with
the
presence
of
ice
and/or
below-zero
temperatures.
Sometimes
in
these
situations,
surface
protection
structure
is
usually
designed
using
hot-dip
galvanizing
improve
its
durability.
special
circumstances,
structure’s
connections
also
exposed
adverse
climatic
agents.
International
standards
codes
such
as
Eurocode
3
or
EN1090-2
do
not
provide
indications
for
cases.
this
experimental
research,
24
specimens
non-slip
joints
galvanized
faying
surfaces
HV
M16
M20
bolts
have
been
studied.
Twelve
were
fourteen
twelve-hour
freeze-thaw
cycles,
temperature
oscillation
periodic
immersion
water.
Next,
six
a
slip
test
under
monotonic
load
at
−20
±
0.5
°C
other
room
temperature.
The
results
compared
kept
cycles
same
period
time.
main
conclusion
piece
research
that
short-term
resistance
behavior
reduced
cases
