Growth of bubbles on a solid surface in response to a pressure reduction

Research output: Contribution to journalArticle

Authors

  • Jiang Li
  • Haosheng Chen
  • Weizheng Zhou
  • Bo Wu
  • Simeon D. Stoyanov

Colleges, School and Institutes

Abstract

A diffusion-controlled method is presented to study the growth of bubbles on a solid surface. The bubbles are nucleated spontaneously on a hydrophobic smooth surface in response to a sudden pressure reduction and then grow with an expanding contact line. The evolution of the bubbles in the early stage is found to grow with a constant bubble radius and a decreasing contact angle, while the bubbles continue their growth with a constant contact angle and an increasing bubble radius after the contact angle reaches its equilibrium value. A total variation of about 60° of the contact angle is observed during the growth of the bubbles with the size scale of 10-100 μm in radius. The growing process is described by the diffusion theory with the validation of the growth constant.

Details

Original languageEnglish
Pages (from-to)4223-4228
Number of pages6
JournalLangmuir
Volume30
Issue number15
Publication statusPublished - 1 Apr 2014