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https://hdl.handle.net/2440/63918
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Type: | Journal article |
Title: | Nanoparticle melting as a stefan moving boundary problem |
Author: | Wu, B. Tillman, P. McCue, S. Hill, J. |
Citation: | Journal of Nanoscience and Nanotechnology, 2009; 9(2):885-888 |
Publisher: | American Scientific Publishers |
Issue Date: | 2009 |
ISSN: | 1533-4880 1533-4899 |
Statement of Responsibility: | Bisheng Wu, Pei Tillman, Scott W McCue and James M Hill |
Abstract: | 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. |
Keywords: | nanoparticle melting variable melting point stefan problem |
Rights: | Copyright status unknown |
DOI: | 10.1166/jnn.2009.C046 |
Published version: | http://dx.doi.org/10.1166/jnn.2009.c046 |
Appears in Collections: | Aurora harvest 5 Mathematical Sciences publications |
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