您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 2    No. 4    November 1992

[PDF Download]    [Flash Online]

    

THERMODYNAMICS OF Cu-Ce-I (I=Al, Si, Ti, Fe) LIQUID SOLUTIONS
Li Guodong1, Du Ting1, Yang Zupan2

1.Central Iron and Steel Research Institute, Being 100081, China;
2.Northeast University of Technology,Shenyang 110006, China

Abstract:The iso-activity of [Ce] of samples reached in multiple-hole-graphite crucibles by controlling the oxygen potential through the reaction 2[Ce]+3CO=Ce2O3+3C. Combining conjugate gradient method of solving ill-conditioned equations, the activity interaction coeffients between Ce and Al, Si> Ti and Fe alloying elements were determined. The equilibrium constant of the reaction 2[Ce]+3[O]=Ce2O3 and the standard free energy of formation of Ce2O3 in liquid Cu were obtained at 1,200℃.

 

Key words: iso-activity  interaction coefficient  Cu-Ce-A1    Cu-Ce-Si    Cu-Ce-Ti  Cu-Ce-Fe       equilibrium constant  standard free energy of formation

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn