第11 卷第5期2005 年10 月上海大学学报(自然科学版)JOURNAL OF SHANGHAI UNIVERSITY (NATURAL SCIENCE)
Vol. 11 No. 5
Oct. 2005
收稿日期 :2005206227 通信作者 :项长祥(1944~) ,男 ,教授 ,研究方向为钢铁冶金及其物理化学. E2mail : xiangchangxiang @sohu. com
魏季和(1942~) ,男 ,教授 ,博士生导师 ,研究方向为冶金反应工程学、钢铁冶金及其物理化学. E2mail : jihew @hotmail. com
文章编号 :100722861(2005) 0520545206
·学术论坛·
冶金熔体中组元活度及其标准态的量度
曲英1,项长祥
1
, 姜钧普
1
, 魏季和
2
(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)
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.
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
中图分类号 : TF 1 ; N 6265 文献标识码 : A
Measures for Activities of Components in Metallurgical
Melts and their Standard States
QU Ying
1
, XIANG Chang2xiang
1
, J IANGJun2pu
1
, WEI Ji2he
2
(1. College of Metallurgy , University of Science and Technology Beijing , Beijing 100083 , China ;
2. School of Materials Science and Engineering , Shanghai University , Shanghai 200072 , China)
Abstract : 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.
Key words : SI system; metallurgical melt ; activity of component ; standard state of activity ; mass fraction ;
mass percent concentration
如何正确求定冶金熔体中组元的活度是冶金过

下一页