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金属学报  1996, Vol. 32 Issue (2): 144-148    
  论文 本期目录 | 过刊浏览 |
Sm_(1+x)Ba_(2-x)Cu_3O_y(0≤x≤0.4)的热力学稳定性
邢献然;乔芝郁;魏寿昆
北京科技大学
THERMODYNAMIC STABILITY OF COMPLEX OXIDE Sm_(1+x)Ba_(2-x)Cu_3O_y(0≤x≤0.4)
XING Hianran; QIAO Zhiyu; WEI Shoukun(University of Science and Technology Beijing; Beijing 100083)(Manuscript received 1995-05-02; in revised form 1995-11-05)
引用本文:

邢献然;乔芝郁;魏寿昆. Sm_(1+x)Ba_(2-x)Cu_3O_y(0≤x≤0.4)的热力学稳定性[J]. 金属学报, 1996, 32(2): 144-148.
, , . THERMODYNAMIC STABILITY OF COMPLEX OXIDE Sm_(1+x)Ba_(2-x)Cu_3O_y(0≤x≤0.4)[J]. Acta Metall Sin, 1996, 32(2): 144-148.

全文: PDF(352 KB)  
摘要: 用测量固体电解质电池电动势(EMF)的方法,测试了Sm-Ba-Cu-O体系主要化合物的标准Gibbs生成自由能;结果发现,稀土复合氧化物Sm_(1+x)Ba_(2-x)Cu_3O_y,随着固溶度x增加,化合物稳定性下降DTA实验支持这一结论。
关键词 电池电动势(EMF)热力学稳定性高温超导体    
Abstract:An assembly for performing EMF measurements using a CaF2 single crystal as a solid state electrolyte has been constructed. From the EMF data, the standard Gibbs energies of formation of member oxides in the Sm-Ba-Cu-O system were calculated. It is found that the thermodynamic stability of the complex oxide Sm_(1+x)Ba_(2-x)Cu_3O_y(0≤x≤0.4)decreases with the increase in the solid solubility x.(Correspondent: XING Xianran, associate professor-Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083.)
Key words electromotive force (EMF)    thermodynamic stability    high temperature superconductor
收稿日期: 1996-02-18     
基金资助:国家自然科学基金
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