CAS OpenIR  > 中科院上海原子核所2003年前
Mesoscopic kinetics of nonequilibrium solidification
Cai, YW(蔡英文); Zhang, GL(张国亮); Fu, HZ
2000
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume87Issue:11Pages:7735
AbstractDisadvantages of Aziz interface partition model [J. Appl. Phys. 53, 1158 (1982)] are summarized in this article. Using transition state theory and Maxwell-Boltzmann distribution law, a mesoscopic solute partition model (MPM) including multilayer interface for dilute solution is put forward. It is shown that the static interface structure and roughening behavior have significant effects on solute partitioning. Both the partition processes of semiconductors and metals can be explained by MPM rationally. The Aziz model is just a particular case of MPM for monolayer interface without roughening before complete trapping occurs. Comparisons of MPM with experimental results in Si (As, Ge, Bi, Sn) and Al(Cu, Sn, Ge, In) show pretty good agreement, provided an educated speculation of interface roughening behavior is given. Also in MPM, it is pointed out that interface diffusivity D-i correlates with the interface scale. For semiconductors with an atomic sharp solid/liquid interface, D-i is close to D-L, the diffusivity of bulk liquid. On the other hand, for metals with a diffuse interface, D-i can be orders of magnitude lower than D-L, to some extent estimated by root DSDL, the geometric mean of the diffusivity of bulk solid and liquid. (C) 2000 American Institute of Physics. [S0021-8979(00)05411-6].
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000087067400019
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/10057
Collection中科院上海原子核所2003年前
Recommended Citation
GB/T 7714
Cai, YW,Zhang, GL,Fu, HZ. Mesoscopic kinetics of nonequilibrium solidification[J]. JOURNAL OF APPLIED PHYSICS,2000,87(11):7735.
APA Cai, YW,Zhang, GL,&Fu, HZ.(2000).Mesoscopic kinetics of nonequilibrium solidification.JOURNAL OF APPLIED PHYSICS,87(11),7735.
MLA Cai, YW,et al."Mesoscopic kinetics of nonequilibrium solidification".JOURNAL OF APPLIED PHYSICS 87.11(2000):7735.
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