The use of measured values of surface energies to test heterogeneous nucleation theory


Marasli N. , HUNT J.

JOURNAL OF CRYSTAL GROWTH, vol.191, no.3, pp.558-562, 1998 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 191 Issue: 3
  • Publication Date: 1998
  • Doi Number: 10.1016/s0022-0248(98)00247-4
  • Title of Journal : JOURNAL OF CRYSTAL GROWTH
  • Page Numbers: pp.558-562

Abstract

Recent measurements of both solid-solid and solid-liquid surface energies in the Al-CuAl2 system have allowed a test of classical heterogeneous nucleation theory to be made. The nucleation rate of CuAl2, on an Al substrate has been calculated; the calculated nucleation rate per droplet does not agree with experimental measurements. It appears that the present model of heterogeneous nucleation can only be used if non-physical surface energies are used. (C) 1998 Elsevier Science B.V. All rights reserved.