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金属学报  1987, Vol. 23 Issue (6): 553-559    
  论文 本期目录 | 过刊浏览 |
Ni液中Ce-O,Ce-S,Ce-S-O平衡的研究
王龙妹;杜挺
冶金部钢铁研究总院;冶金部钢铁研究总院
Ce-O, Ce-S AND Ce-S-O EQUILIBRIA IN LIQUID Ni
by WANG Longmei; DU Ting (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 10 February; 1986; revised manuscript 11 August; 1986)
引用本文:

王龙妹;杜挺. Ni液中Ce-O,Ce-S,Ce-S-O平衡的研究[J]. 金属学报, 1987, 23(6): 553-559.
, . Ce-O, Ce-S AND Ce-S-O EQUILIBRIA IN LIQUID Ni[J]. Acta Metall Sin, 1987, 23(6): 553-559.

全文: PDF(425 KB)  
摘要: 由低温无水电解稀土夹杂物和固体电解质定氧活度测得Ni液中Ce_2O_3,CeS及Ce_2O_2S生成反应的平衡常数,由此可得: △G°_(Ce_2O_3)=-116240+315.8 T △G°_(Ces)=-570280+220.1 T △G°_(Ce_2O_2S)=-984850+238.5 T 由实验测得数据经热力学分析计算得到1600℃Ni液中a_O-a_S平衡图,为理论上预测夹杂物生成的先后次序及类型提供了依据。
Abstract:Reaction constants of the formation of Ce_2O_3, CeS and Ce_2O_2S in liquid Ni at 1500 to 1600℃ have been determined, then the standard Gibbs energies (J·mol) were obtained: △G°_(Ce_2O_3)=-116240+315.8 T △G°_(Ces)=-570280+220.1 T △G°_(Ce_2O_2S)=-984850+238.5 T The reaction coefficients e_O~(Ce) and e_S~(Ce) have also be determined: e_O~(Ce)=-333451/T+149.7 e_S~(Ce)=-276228/T+146.0 The equilibrium phase diagram of a_o-a_s for Ni-Ce-S-O system at 1600℃ was also given.
收稿日期: 1987-06-18     
基金资助:中国科学院科学基金
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