Interfacial Forces: Classification

Particle size and fraction required to stabilise aluminium alloy foams created by gas injection

“…This skin has to be thick and strong enough to hold particles [16]. Particle bridges might be indeed possible from one bubble surface to another and provide a mechanical disjoining force as suggested by Kaptay [25]. So if the minimal particle concentration is not reached ( Figure 4d) nothing prevents the bubble surfaces from merging when the film thickness becomes undercritical.…”

“…The corresponding explanation in Ref. [18] for "weak foam stability" is based on the assumption of a double particle layer at the gas-liquid interface [25].…”