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


Marasli N. , HUNT J.

JOURNAL OF CRYSTAL GROWTH, cilt.191, ss.558-562, 1998 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 191 Konu: 3
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s0022-0248(98)00247-4
  • Dergi Adı: JOURNAL OF CRYSTAL GROWTH
  • Sayfa Sayısı: ss.558-562

Özet

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.