INDUCTION TIME AND METASTABILITY LIMIT IN NEW PHASE FORMATION

被引:200
作者
KASHCHIEV, D [1 ]
VERDOES, D [1 ]
VANROSMALEN, GM [1 ]
机构
[1] DELFT UNIV TECHNOL,FAC CHEM TECHNOL & MAT SCI,2628 CA DELFT,NETHERLANDS
关键词
D O I
10.1016/0022-0248(91)90273-8
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
An analysis is made of the induction time t(i) in new phase formation, i.e. of the time elapsing before the onset of the process. A general formula for t(i) is proposed which is valid for any number of nuclei appearing and growing in the parent phase and which unites the known expressions for t(i) only applicable when either one or a large number of nuclei are involved in the process. This formula for t(i) is used for determination of the metastability limit in new phase formation, i.e. of the critical (or maximum) supersaturation below which the parent phase can stay long enough in metastable equilibrium.
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页码:373 / 380
页数:8
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