Dear Colleagues,

There are two typical bubble nucleation experiments. One involves mixing a test liquid droplet in an immiscible liquid medium and heating it to the superheat limit (about 90% of the critical temperature) at 1 atm without boiling. At the superheat limit, the droplet evaporates explosively into vapor bubbles. The other involves rapidly decompressing a saturated liquid–gas solution or volatile–metal solution at high pressure to a lower pressure, causing gas-induced bubble formation in the solution. Additionally, gas bubble formation or vapor bubble formation is observed on atomic-scale smooth surfaces. Recently, gas-induced bubble formation on hydrophobic surfaces has been extensively studied by many researchers. Classical nucleation theory, density functional theory or molecular cluster models have been used to predict the superheat and depressurization limits of liquids for bubble formation with appropriate nucleation rates per unit volume. However, the nucleation theory itself must predict the state at the time of bubble formation and the rate of nucleation at that condition. All papers on theoretical, computational and/or experimental studies describing homogeneous or heterogeneous bubble nucleation on atomic-scale smooth surface and its applications are welcome in this Special Issue.

Prof. Dr. Ho-Young Kwak
Guest Editor

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• homogeneous or heterogeneous bubble nucleation
• superheat limit of liquids
• decompression amount for bubble formation
• atomic-scale smooth surface
• saturated gas(volatile)–liquid (melts) solution
• surface nanobubble
• microbubble
• molecular dynamics simulation