| Y—Ba—Cu—O系高Tc超导材料的电子衍射分析 |
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| 引用本文： | 吴秀玲,赵文霞.Y—Ba—Cu—O系高Tc超导材料的电子衍射分析[J].地球科学,1989,14(4):407-412. |
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| 作者姓名： | 吴秀玲 赵文霞 |
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| 作者单位： | China University of Geosciences，Wuhan 430074 |
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| 摘 要： |
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| 关 键 词： | 高Tc超异材料 钇钡铜氧 电子衍射 |
ELECTRON DIFFRACTION ANALYSIS OF Y-Ba-Cu-O SYSTEM HIGH Tc SUPERCONDUCTING MATERIALS |
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| Wu Xiuling Zhao Wenxia Shen Jinchuan Meng Dawei Wang Yongzai Zhou Weigong.ELECTRON DIFFRACTION ANALYSIS OF Y-Ba-Cu-O SYSTEM HIGH Tc SUPERCONDUCTING MATERIALS[J].Earth Science-Journal of China University of Geosciences,1989,14(4):407-412. |
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| Authors: | Wu Xiuling Zhao Wenxia Shen Jinchuan Meng Dawei Wang Yongzai Zhou Weigong |
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| Abstract: | Crystal system, cell parameters and possible space group of a series phases contained in Y-Ba-Cu-O system multi-phase superconducting material have been determined by the electron diffraction. The studies show that the main phase is orthorhombic with the cell parameters a=0.3832nm,b=0.3878nm,c=1.1775nm,and the possible space group is Pmmm. The second phase is also orthorhombic with the cell parameters a=0.7109nm,b=1.2155nm,c=0.5666nm,and the possible space group is Pbcm. Besides, other four minor phases in smaple have been determined too. Structural features ( twinning, packing error, etc ) of superconducting crystal have been studied by HREM. |
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| Keywords: | high Tc superconducting material electron diffraction HREM (High Resolution Electron Microscopy) crystal structure |
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