Complete prewetting. (23rd May 2016)

• Record Type: Journal Article
• Authors: Yatsyshin, P; Parry, A O; Kalliadasis, S
• Is Part Of: Journal of physics. Volume 28:Number 27(2016)
• Publication Date: 2016-05-23
• Subjects: prewetting -- phase transitions -- nanoconfinement; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/0953-8984/28/27/275001
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: We study continuous interfacial transitions, analagous to two-dimensional complete wetting, associated with the first-order prewetting line, which can occur on steps, patterned walls, grooves and wedges, and which are sensitive to both the range of the intermolecular forces and interfacial fluctuation effects. These transitions compete with wetting, filling and condensation producing very rich phase diagrams even for relatively simple prototypical geometries. Using microscopic classical density functional theory to model systems with realistic Lennard-Jones fluid–fluid and fluid–substrate intermolecular potentials, we compute mean-field fluid density profiles, adsorption isotherms and phase diagrams for a variety of confining geometries.