Solidification of highly undercooled silicon: Bulk nucleation and amorphous phase formation
Journal Article
·
· Materials Research Society Symposia Proceedings; (USA)
OSTI ID:5177448
Recent experimental and theoretical work suggests that bulk nucleation occurs in highly undercooled liquid silicon formed by the pulsed laser melting of amorphous layers. In this paper, the authors discuss the dynamics of solidification of undercooled liquid silicon in terms of results from melting model calculations and from the theory of homogeneous bulk nucleation. The relationship between the occurrence of bulk nucleation and the ability to induce a liquid-to-amorphous phase transition by large undercoolings of the liquid is considered. It is concluded that the observed liquid-to-amorphous transition in silicon cannot be explained by an equilibrium thermodynamic approach. 13 refs., 2 figs., 1 tab.
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5177448
- Journal Information:
- Materials Research Society Symposia Proceedings; (USA), Journal Name: Materials Research Society Symposia Proceedings; (USA) Vol. 23; ISSN MRSPD; ISSN 0272-9172
- Country of Publication:
- United States
- Language:
- English
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