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Diffusion Coefficient of Calcium Ion in CaO-Al_2O_3-SiO_2 Melts

Diffusion Coefficient of Calcium Ion in CaO-Al_2O_3-SiO_2 Melts

作     者:ZHANG Guo-hua CHOU Kuo-chih 

作者机构:Metallurgical and Ecological Engineering SchoolUniversity of Science and Technology BeijingBeijing 100083China Department of Materials Science and EngineeringShanghai UniversityShanghai 200072China 

出 版 物:《Journal of Iron and Steel Research International》 (JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL)

年 卷 期:2011年第18卷第3期

页      面:13-16页

核心收录:

学科分类:07[理学] 071009[理学-细胞生物学] 09[农学] 090102[农学-作物遗传育种] 070101[理学-基础数学] 0710[理学-生物学] 0806[工学-冶金工程] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0901[农学-作物学] 0701[理学-数学] 0702[理学-物理学] 0801[工学-力学(可授工学、理学学位)] 

基  金:Item Sponsored by National Natural Science Foundation of China(50774004) 

主  题:Nernst-Einstein equation diffusion coefficient electrical conductivity Arrhenius law 

摘      要:The Nernst-Einstein equation is used to calculate the diffusion coefficient of calcium ion in the CaO-Al2O3-SiO2 system based on the data of the density and electrical *** is assumed that all the aluminium ions form tetrahedral structure and merge with chain or ring in the case of molar concentration of CaO higher than *** in this case,calcium ion is assumed to be the conclusive charge carrier.A formula between the diffusion coefficient and concentration of calcium ion as well as temperature is deduced,which gives an increasing function relation between the diffusion coefficient and the concentration of calcium ions.

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