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Heterogeneous nucleation of nanometre-sized Bi particles embedded in a Zn matrix

Goswami, R and Chattopadhyay, K (1995) Heterogeneous nucleation of nanometre-sized Bi particles embedded in a Zn matrix. In: Philosophical Magazine Letters, 72 (6). pp. 411-416.

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It is argued that the nanometric dispersion of Bi in a Zn matrix is an ideal model system for heterogeneous nucleation experiments. The classical theory of heterogeneous nucleation with a hemispherical cap model is applied to analyse the nucleation data. It is shown that, unlike the results of earlier experiments, the derived site density for catalytic nucleation and contact angle are realistic and strongly suggest the validity of the classical theory. The surface energy between the 0001 plane of Zn and the <10(1)over bar 2> plane of Bi, which constitute the epitaxial nucleation interface, is estimated to be 39 mJ m(-2).

Item Type: Journal Article
Publication: Philosophical Magazine Letters
Publisher: Taylor and Francis Group
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 31 May 2011 07:51
Last Modified: 31 May 2011 07:51
URI: http://eprints.iisc.ac.in/id/eprint/38021

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