摘要
Maximum solid solubility (C_ max) of different transition metals in metal solvent can be described by a semi-empirical equation using function Z_f that contains electronegativity difference, atomic diameter and electron concentration. The relation between C_ max and these parameters of transition metals in vanadium solvent was studied. It is shown that the relation of C_ max and function Z_f can be expressed as lnC_ max=Z_f= 7.3165- 2.7805(ΔX) 2- 71.278δ 2-0.85556n 2/3. The factor of atomic size parameter has the largest effect on the C_ max of the V binary alloy; followed by the factor of electronegativity difference; the electrons concentration has the smallest effect among the three bond parameters. Function Z_f is used for predicting the unknown C_ max of the transition metals in vanadium solvent. The results are compared with Darken-Gurry theorem, which can be deduced by the obtained function Z_f in this work.
Maximum solid solubility (Cmax) of different transition metals in metal solvent can be described by a semi-empirical equation using function Zf that contains electronegativity difference, atomic diameter and electron concentration. The relation between Cmax and these parameters of transition metals in vanadium solvent was studied. It is shown that the relation of Cmax and function Zf can be expressed as In Cmax = Zf = 7. 316 5- 2. 780 5 (△X)^2- 71. 278δ^2-0. 855 56n^2/3. The factor of atomic size parameter has the largest effect on the Cmax of the V binary alloy; followed by the factor of electronegativity difference; the electrons concentration has the smallest effect among the three bond parameters. Function Zf is used for predicting the unknown Cmax of the transition metals in vanadium solvent. The results are compared with Darken-Gurry theorem, which can be deduced by the obtained function Zf in this work.
出处
《中国有色金属学会会刊:英文版》
EI
CSCD
2005年第5期1085-1088,共4页
Transactions of Nonferrous Metals Society of China
基金
Project(045211019)supportedbyShanghaiMunicipalCommissionofScienceandTechnology
关键词
钒
溶解剂
固体溶解力
电极
电镀工艺
合金
solid solubility
vanadium alloys
function Zf
electronegativity difference
atomic size parameters
electron concentration