Interplay of wall force field and wall physical characteristics on interfacial phenomena of a nano-confined gas medium

Solid–gas interface thermal conductance for the thermal barrier coating with surface roughness: The confinement effect

“…[21] Several works found that a better mass matching between the solid and gas can improve the efficiency of the heat exchange at the solid-gas interface. [22,23] Zhang et al investigated the temperature jump at rough solid-gas interfaces, and the results show that the surface roughness is beneficial for the energy exchange at the solid-gas interface. [24] Some other effects on the solid-gas interface thermal conductance have also been studied, including the interface bonding strength [25,26] and the organic selfassembled monolayer.…”

Thermally induced stress in a nanoconfined gas medium

“…It was also shown that as the wall/gas interaction potential increased up to four times the one of gas/gas interactions, an enhancement in the induced heat flux was also observed. Recently, we investigated the combined effect of the wall physical characteristics and the wall force field on the interfacial phenomena of a 5.4 nm nanoconfined gas medium [47]. It was shown that in such dimension where approximately 40% of channel height is covered by the wall force field, the interfacial phenomena such as interfacial thermal resistance, the number of absorbed gas on the walls, and the temperature jump are greatly depended on the interplay between the wall force field and wall physical characteristics.…”