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| METASTABLE EXTENSION OF SOLID SOLUBILITY OF CERTAIN LIGHT RARE-EARTH METALS IN Ag |
| NING Yuantao; ZHENG Yun (Institute of Precious Metals Research; Kunming) |
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Cite this article:
NING Yuantao; ZHENG Yun (Institute of Precious Metals Research; Kunming). METASTABLE EXTENSION OF SOLID SOLUBILITY OF CERTAIN LIGHT RARE-EARTH METALS IN Ag. Acta Metall Sin, 1983, 19(6): 67-71.
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Abstract The metastable extension of solid solubility of certain light rare-earth, i.e. La, Ce, Pr, Nd and Gd, in Ag has evaluated by measurement of the lattice parameters of the quenched melts, made of separate metal with Ag. It was resulted that at the cooling rate about 10~5—10~6 K/s, their metastable limit solid solubility is 1.0, 1.5, 2.5, 3.0 and 6.0 at.-% respectively, which is directly proportional to the contractions of the lanthanide and conform to the authors' proposal on a(A)-A_mB_n eutectic systems. The solid solubility in equilibrium has been discussed.
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Received: 18 June 1983
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1 周新铭;靳嘉禄;宁远涛;赵钟民,金属学报,18 (1982) ,534．
2 宁远涛,金属学报,19 (1983) .A 346．
3 Staudhammer, K. P.; Murr, L. E., Atlas of Binary Alloys, Marcel Dekker, Inc., New York, 1973, p. 6．
4 Gschneidner, K. A., Jr.; McMasters, O. D.; Alexander, D. G.; Venteicher, R. F., Metall. Trans., 1 (1970) , 1961．
5 Delfino, S.; Ferro, R.; Capelli, R.; Borsese, A., Z. Metallk., 65 (1974) , 781．
6 Delfino, S.; Ferro, R.; Capelli, R., Borsese, A., J. Less-Common Met., 41 (1975) , 60．
7 Delfino, S.; Borsese, A.; Capelli, R.; Ferro, R., ibid., 35 (1974) , 32．
8 Ferro, R.; Borsese, A.; Selfino, S.; Marazza, R.; Seminara, A., ibid., 35 (1974) , 40．
9 Kiessler, G.; Gebhardt, E.; Steeb, S., ibid., 26 (1972) , 295． |
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