冶金熔体中组元活度及其标准态的量度  

Measures for Activities of Components in Metallurgical Melts and their Standard States

作　　者：曲英[1] 项长祥[1] 姜钧普[1] 魏季和[2] 

机构地区：[1]北京科技大学冶金学院,北京100083 [2]上海大学材料科学与工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2005年第5期545-550,共6页Journal of Shanghai University:Natural Science Edition

摘　　要：从冶金熔体中组元的活度及其标准态的概念和定义出发,分析和讨论了在冶金领域应用质量分数和质量百分浓度的差异.指出采用质量百分浓度或质量分数来表示金属溶液中组元的含量,决不仅是简单的单位或数值变换,而且涉及冶金物理化学的基本原则,必须予以认真考虑和对待.Proceeding from the concepts and definitions of the activities of components in metallurgical melts and their standard states, the discrepancies about applying the mass fraction and mass percent concentration to metallurgy were analyzed and discussed. It was pointed out that using the mass percent concentration or the mass fraction to indicate the contents of components in metallic solution is entirely not only a simple unit and numerical transformation, but also relating to the basic principles in physical chemistry of metallurgical processes, must be seriously considered and treated.

关 键 词：SI制 冶金熔体 组元活度 活度的标准态 质量分数 质量百分浓度 

分 类 号：TF1[冶金工程—冶金物理化学] N6-65[自然科学总论]