Estimation of component activities in some oxide solid solutions by the molecular interaction vacancy model

作     者：Dongping TAO 

作者机构：Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming 650093 China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2011年第24卷第6期

页      面：432-442页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 080601[工学-冶金物理化学] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos.51090381 and 50764006) 

主　　题：Estimation Activity Oxide Solid solution Thermodynamic model 

摘      要：The molecular interaction vacancy model （MIVM） is used to estimate simultaneously activities of all components in a range of entire composition of six binary oxide solid solutions and the MnO-FeO-CaO ternary solid solution by their binary infinite dilute activity coefficients. The average errors are the 0.03%-5.0% for the binaries and the 4.11%-25.2% for the ternary which is less than that （4.84%-41.2%） of the sub-regular solution model （SRSM）. This shows that MIVM is more effective and reliable than SRSM for the ternary and does not depend on a polynomial approximation with some ternary adjustable parameters.