The full expression for the induction time in homogeneous nucleation given by Wu has been evaluated for small critical nucleus sizes. It is shown, using parameters relevant to the Cu-Co alloy system, that Wu's analytical approximation for large critical nucleus sizes holds to quite small values (∼10 atoms). A more elaborate expression from Shneidman and Weinberg was also examined; it yields slightly different predictions.
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References
1.
WUD. T.: in ‘Solid state physics: advances in research and applications’, (ed. H Ehrenreich and F. Spaepen), 50, 38; 1996, New York, NY, Academic Press.
2.
KASHCHIEVD.: ‘Nucleation: basic theory with applications’: 2000, Oxford, Butterworth—Heinemann.
3.
KELTONK. F.: Mater. Sci. Eng. B, 1995, B32, 145.
4.
WUD. T.: J. Chem. Phys.,1992, 97, 2644.
5.
SHNEIDMANV. A. and WEINBERGM. C.: J. Chem. Phys.,1992, 97, 3621.
6.
SHNEIDMANV. A. and WEINBERGM. C.: J. Chem. Phys.,1992,97,3629.
7.
KAMPMANNR. and WAGNERR.: in ‘Decomposition of alloys: the early stages’, (ed.HaasenP. et al), 91; 1984, Oxford, Pergamon Press.
8.
AARONSONH. I. and LEGOUESF. K.: Metall. Trans A, 1992, 23A, 1915.
9.
SETNAR. P.: DPhil thesis, University of Oxford, UK, 1994.
10.
KELTONK. F., GREERA. L., and THOMPSONC. V.: J. Chem. Phys.,1983, 79, 6261.