Critical behaviour of the contact angle within nonwetting gaps.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00582854" target="_blank" >RIV/67985858:_____/24:00582854 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/24:43930474
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-648X/ad20a3/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-648X/ad20a3/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-648X/ad20a3" target="_blank" >10.1088/1361-648X/ad20a3</a>
Alternative languages
Result language
angličtina
Original language name
Critical behaviour of the contact angle within nonwetting gaps.
Original language description
Recent density functional theory and simulation studies of fluid adsorption near planar walls in systems where the wall–fluid and fluid–fluid interactions have different ranges, have shown that critical point wetting may not occur and instead nonwetting gaps appear in the surface phase diagram, separating lines of wetting and drying transitions, that extend up to the critical temperature Tc. Here we clarify the features of the surface phase diagrams that are common, regardless of the range and balance of the forces, showing, in particular, that the lines of temperature driven wetting and drying transitions, as well as lines of constant contact angle $pigtthetagt 0$, always converge to an ordinary surface phase transition at Tc. When nonwetting gaps appear the contact angle either vanishes or tends to π as $tequiv(T_c-T)/T_cto 0$. More specifically, when the wall–fluid interaction is long-ranged (dispersion-like) and the fluid–fluid short-ranged we estimate $pi-thetapropto t^{0.16}$, compared with $thetapropto t^{0.77}$ when the wall–fluid interaction is short-ranged and the fluid–fluid dispersion-like, allowing for the effects of bulk critical fluctuations. The universal convergence of the lines of constant contact angle implies that critical point filling always occurs for fluids adsorbed in wedges.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA21-27338S" target="_blank" >GA21-27338S: Capacitive Deionisation: Insights from Molecular Modelling</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics-Condensed Matter
ISSN
0953-8984
e-ISSN
1361-648X
Volume of the periodical
36
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
17LT01
UT code for WoS article
001152972200001
EID of the result in the Scopus database
2-s2.0-85183959694