| Thermodynamics and Phase Equilibria for Ce,Y in the Presence of O,S in Ni-base Solutions |
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| 作者姓名： | 杜挺 王龙妹 刘爱生 吴夜明 张玉清 |
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| 作者单位： | Central Iron and Steel Research Institute Beijing 100081，China，Central Iron and Steel Research Institute，Beijing 100081，China，Central Iron and Steel Research Institute，Beijing 100081，China，Central Iron and Steel Research Institute，Beijing 100081，China，Central Iron and Steel Research Institute，Beijing 100081，China |
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| 基金项目： | This subject is supported by the National Natural Science Foundation of China |
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| 摘 要： | The deoxidation,desulfuration,deoxysulfuration constants and the standard Gibbs energies(inJ mol~(-1))of formation of the following rare earth compounds as the equilibrium phases in Ni-base solutionsare given:Ce_2O_3:lgK=-(6.0729×10~4/T)+16.50 △G~0=-1.162460×10~6+315.84TCe_2O_2S:lgK=-(5.1450×10~4/T)+12.46 △G~0=-9.84850×10~5+238.50TCe_2S_3:lgK=-(7.2232×10~4/T)+27.98 △G~0=-1.382600×10~6+535.55TY_2O_3:lgK=-(4.2572×10~4/T)+7.74 △G~0=-8.14920×10~5+148.16TY_2O_2S:lgK=-(3.3146×10~4/T)+3.85 △G~0=-6.34460×10~5+73.72TY_2S_3:lgK=-(1.22487×10~5/T)+55.78 △G~0=-2.344630×10~0+1067.76TInteraction coefficients between Ce.Y and O are also given:e_o~(?)=-(3.33451×10~5/T)+149.7 e_O~(?)=-(1.63437×10~5/T)+71.8The phase equilibria for Ni-Ce-S-O and Ni-Y-S-O solutions at 1600℃ provide the basis for pre-dicting the sequence and type of Ce and Y equilibrium phases formed in Ni-base solutions.The formulascontrolling the morphology of inclusion formed in liquid Ni by Ce or Y addition are also given.
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Thermodynamics and Phase Equilibria for Ce,Y in the Presence of O,S in Ni-base Solutions |
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| Du Ting Wang Long-Mei Liu Ai-Sheng Wu Ye-Ming Zhang Yu-Qing Central Iron and Steel Research Institute,Beijing ,China.Thermodynamics and Phase Equilibria for Ce,Y in the Presence of O,S in Ni-base Solutions[J].Journal of Rare Earths,1993(1). |
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| Authors: | Du Ting Wang Long-Mei Liu Ai-Sheng Wu Ye-Ming Zhang Yu-Qing Central Iron and Steel Research Institute Beijing China |
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| Affiliation: | Du Ting Wang Long-Mei Liu Ai-Sheng Wu Ye-Ming Zhang Yu-Qing Central Iron and Steel Research Institute,Beijing 100081,China |
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| Abstract: | |
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| Keywords: | Ce Y Ni-base solutions Thermodynamics Phase equilibria |
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