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Self-Diffusion Coefficient of Liquid Alkali Metals
Paper Type  |
Contributed Paper |
Title |
Self-Diffusion Coefficient of Liquid Alkali Metals |
Author |
Sant K. Srivastava* [a] and Kishor G. Kolhe [b] |
Email |
markcom@sancharnet.in |
|
Abstract: Self-diffusion coefficient ‘D’ of liquid metals has been evaluated under pseudopotential formalism and liquid state dynamics. A suitable expression of D (D=KvsβLTm/rs) of Swalin is used, during studies of melting behaviours of metals. We have reassessed various concepts of Ziman, Ascarelli – Harrisson – Paskin, Enderby – March – Tosi and Lindemann criteria. A new concept of isothermal compressibility βL
[βL-1 =( βLpl)-1 + (βLst )-1 ] of liquid metals is derived in terms of plasma ( βLPl ) and band structural (βLst) contributions of compressibilities. Our methodology presents good results of self-diffusion coefficeient D of liquid alkali metals. |
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Start & End Page |
125 - 129 |
Received Date |
2003-06-27 |
Revised Date |
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Accepted Date |
2004-04-21 |
Full Text |
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Keyword |
liquid alkali metals, melting studies of metals, plasma and band structural concepts, pseudopotential and liquid state theories, self-diffusion coefficient |
Volume |
Vol.31 No.2 May 2004 |
DOI |
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Citation |
[a] S.K.S. and [b] K.G.K., Self-Diffusion Coefficient of Liquid Alkali Metals, Chiang Mai Journal of Science, 2004; 31(2): 125-129. |
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