Critical-point wedge filling and critical-point wetting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00582853" target="_blank" >RIV/67985858:_____/24:00582853 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/24:43930477

Result on the web

<a href="https://hdl.handle.net/11104/0350904" target="_blank" >https://hdl.handle.net/11104/0350904</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevE.109.024802" target="_blank" >10.1103/PhysRevE.109.024802</a>

Result language

angličtina

Original language name

Critical-point wedge filling and critical-point wetting

Original language description

For simple fluids adsorbed at a planar solid substrate (modeled as an inert wall) it is known that critical-point wetting, that is, the vanishing of the contact angle θ at a temperature Tw lying below that of the critical point Tc, need not occur. While critical-point wetting necessarily happens when the wall-fluid and fluid-fluid forces have the same range (e.g., both are long ranged or both short ranged) nonwetting gaps appear in the surface phase diagram when there is an imbalance between the ranges of these forces. Here we show that despite this, the convergence of the lines of constant contact angle, 0 <θ<π, to an ordinary surface phase transition at Tc, means that fluids adsorbed in wedges (and cones) always exhibit critical-point filling (wedge wetting or wedge drying) regardless of the range and imbalance of the forces. We illustrate the necessity of critical-point filling, even in the absence of critical-point wetting, using a microscopic model density functional theory of fluid adsorption in a right angle wedge, with dispersion and also retarded dispersionlike wall-fluid forces. The location and order of the filling phase boundaries are determined and shown to be in excellent agreement with exact thermodynamic requirements and also predictions for critical singularities based on interfacial models.

Czech name

—

Czech description

—

Type

J_imp - 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.)

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

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review E

ISSN

2470-0045

e-ISSN

2470-0053

Volume of the periodical

109

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

024802

UT code for WoS article

001171289100008

EID of the result in the Scopus database

2-s2.0-85185400643