ADSORPTION OF NANO-PARTICLES ON BUBBLE SURFACE IN NANO-PARTICLE SUSPENSION

作     者：Buxuan Wang Chunhui Li Xiaofeng Peng 

作者机构：Laboratory of Phase-Change and Interfacial Transport PhenomenaDepartment of Thermal Engineering Tsinghua UniversityBeijing 100084 P. R. China 

出 版 物：《China Particuology》 (CHINESE PARTICUOLOGY)

年 卷 期：2005年第3卷第4期

页      面：208-212页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This project is supported by the National Natural Science Foundation of China(Grant No.59995553) 

主　　题：nano-particle suspension attachment critical distance 

摘      要：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.