| Bi—Sr—Ca—Cu—O系超导体制备过程中化学组成的选择性挥发 |
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| 引用本文： | 赵良仲,胡玉秀.Bi—Sr—Ca—Cu—O系超导体制备过程中化学组成的选择性挥发[J].无机材料学报,1990,5(4):346-348. |
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| 作者姓名： | 赵良仲 胡玉秀 |
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| 作者单位： | 中国科学院化学研究所 北京市
(赵良仲，胡玉秀，王俊茹，杨德亮，张金彪)，中国科学院化学研究所 北京市(朱道本) |
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| 摘 要： |
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| 关 键 词： | 超导体 制备 化学组成 铋 锶 钙 |
Preferential Volatilization of the Chemical Components in Bi-Sr-Ca-Cu-O Superconductor during the Process of Preparation |
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| Zhao Liangzhong Hu Yuxiu Wang Junru Yang Deliang Zhang Jinbiao Zhu Daoben.Preferential Volatilization of the Chemical Components in Bi-Sr-Ca-Cu-O Superconductor during the Process of Preparation[J].Journal of Inorganic Materials,1990,5(4):346-348. |
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| Authors: | Zhao Liangzhong Hu Yuxiu Wang Junru Yang Deliang Zhang Jinbiao Zhu Daoben |
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| Abstract: | A comparative study shows that during heat treatment,Ag-sheet covered Bi-Sr-Ca-Cu-O superconductor has a higher zero resistance T_(?) than the uncovered one,and 110K superconducting phase is easily formed in the Ag-covered sample than inthe uncovered one.XPS results show that the preferential volatilizing of Bi and Caespecially Bi in Bi-Sr-Ca-Cu-O superconductor occurs during sintering process.Therelative concentrations of Bi,Sr,Ca and O in the sample covered with Ag-sheetare higher than that of the uncovered one because the Ag cover can depress thevolatility. |
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| Keywords: | High-T_c superconductor Bi-Sr-Ca-Cu-O X-ray photoelectron spectroscopy Volatilization of Bi |
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