Nanoparticle melting as a Stefan moving boundary problem
Data(s) |
01/02/2009
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Resumo |
The melting of spherical nanoparticles is considered from the perspective of heat flow in a pure material and as a moving boundary (Stefan) problem. The dependence of the melting temperature on both the size of the particle and the interfacial tension is described by the Gibbs-Thomson effect, and the resulting two-phase model is solved numerically using a front-fixing method. Results show that interfacial tension increases the speed of the melting process, and furthermore, the temperature distribution within the solid core of the particle exhibits behaviour that is qualitatively different to that predicted by the classical models without interfacial tension. |
Formato |
application/pdf |
Identificador | |
Publicador |
American Scientific Publishers |
Relação |
http://eprints.qut.edu.au/29863/1/c29863.pdf DOI:10.1166/jnn.2009.C046 Wu, Bisheng, Tillman, Pei, McCue, Scott W., & Hill, James M. (2009) Nanoparticle melting as a Stefan moving boundary problem. Journal of Nanoscience and Nanotechnology, 9(2), pp. 885-888. |
Direitos |
Copyright 2009 American Scientific Publishers |
Fonte |
Faculty of Science and Technology; Mathematical Sciences |
Palavras-Chave | #010207 Theoretical and Applied Mechanics #Nanoparticle melting #Variable melting point #Stefan problem |
Tipo |
Journal Article |