Journal of University of Chinese Academy of Sciences >
Contact angle of nucleation on the substrate of three mutually perpendicular planes
Received date: 2009-11-30
Revised date: 2010-01-06
Online published: 2010-07-15
This paper focuses on the discussion of the heterogeneous nucleation on the substrate of three mutually perpendicular planes. According to the condition of heterogeneous nucleation, we study the critical radius of nucleation and the critical nucleation energy to form a critical nucleus, and obtain a mathematical expression of critical nucleation energy and contact angle. The result shows that the critical nucleation energy is only relevant to the contact angle and that the contact angle plays an important role in heterogeneous nucleation. The discussion on contact angles of nucleation indicates that the critical nucleation energy of heterogeneous nucleation is smaller than that of spontaneous nucleation.
Key words： heterogeneous; contact angle; nucleation radius; nucleation energy
HAO Xiao-Hui , GAO Sui-Xiang . Contact angle of nucleation on the substrate of three mutually perpendicular planes[J]. Journal of University of Chinese Academy of Sciences, 2010 , 27(4) : 433 -439 . DOI: 10.7523/j.issn.2095-6134.2010.4.001
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