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| AN APPROACH TO PREDICTING LATTICE PARAMETERS OF CERTAIN SOLID SOLUTION |
| NING Yuantao Institute of Precious Metals;Kunming;XU Hua Shanghai Institute of Metallurgy;Academia Sinica |
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Cite this article:
NING Yuantao Institute of Precious Metals;Kunming;XU Hua Shanghai Institute of Metallurgy;Academia Sinica. AN APPROACH TO PREDICTING LATTICE PARAMETERS OF CERTAIN SOLID SOLUTION. Acta Metall Sin, 1985, 21(1): 139-144.
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Abstract Based on the Miedema′s theory of electric charge shift,a modification of Mo-reen′s model of prediction of the lattice parameters in solid solution was approachedfrom the idea of the atomic size and separation in solid solution changing withsolute concentration.The lattice parameters in both solid solution at equilibrium andextended solid solution prepared by melt quenching seem to be predicted with moreaccuracy.By this modified model,the lattice parameters of Cu-Al,Cu-Si and Ni-Al systems solid solution at equilibrium and Ag-Sn,Ag-La and Ag-Gd extendedsolid solution were calculated.They are in better agreement with the experimentalvalues than the Moreen′s.
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Received: 18 January 1985
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2 Jones,H.,Scr.Metall.,17(1983) ,97．
3 Miedema,A.R.,J.Less-Common Met.,32(1973) ,117．
4 Miedema,A.R.,ibid.,46(1976) 71．
5 Pearson,W.B.;A Handbook of Lattice Spacings and Structures of Metals and Alloys,Pergamon Press,New York,1958,p.304,331． 379,610．
6 宁远涛;郑云,金属学报,19(1983) ,B225．
7 周新铭;靳嘉禄;宁远涛;赵钟民,金属学报,18(1982) ,534． |
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