ADSORPTION OF NANO-PARTICLES ON BUBBLE SURFACE IN NANO-PARTICLE SUSPENSION
The adsorption of nano-particles on bubble surface is discussed for saturated boiling on thin wire of nano-particle suspensions. Owing to the decrease of surface tension for suspensions, the nano-particles tend to adsorb on the bubble surface to decrease the Gibbs free energy for stability, and meanwhile the velocity of nano-particles would be smaller than that of bubble growth. The long-range van der Waals force existing between "water particles" and nano-particles is considered the attractive force between the nano-particles and the bubble surface. Thus, the nano-particles would attach on the bubble surface if the particle-surface distance is smaller than its critical value. The distribution of nano-particles on the bubble surface and in the adjacent region is also investigated.
作 者： Buxuan Wang Chunhui Li Xiaofeng Peng 作者单位： Laboratory of Phase-Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing 100084, P. R. China 刊 名： 中国颗粒学报（英文版） ISTIC SCI 英文刊名： CHINESE PARTICUOLOGY 年，卷(期)： 2005 3(4) 分类号： O6 关键词： nano-particle suspension attachment critical distance