| Y-Ba-Cu-O超导体失超机制的热分析研究 |
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| 引用本文： | 钟山,陈龙武,任家瑛,徐子颉,俞永勤,庄小文,金百强,施汉.Y-Ba-Cu-O超导体失超机制的热分析研究[J].上海师范大学学报(自然科学版),1990(3). |
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| 作者姓名： | 钟山 陈龙武 任家瑛 徐子颉 俞永勤 庄小文 金百强 施汉 |
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| 作者单位： | 华东师范大学化学系，华东师范大学化学系，华东师范大学化学系，华东师范大学化学系，华东师范大学化学系，华东师范大学化学系，华东师范大学化学系，华东师范大学化学系 |
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| 摘 要： | 本文以BaCO_3、Y_2O_3、CuO为原料制备了Y-Ba-Cu-O超导体(T_C=95K)。用热分析方法和化学分析方法研究了这类超导体的稳定性和失超机制。认为超导体存放在空气中由于水蒸气和CO_2的作用而生成Ba(OH)_2和BaCO_3导致超导体组成及相结构的变化是造成失超的重要原因。故隔绝水蒸气和CO_2是阻止失超的有效措施
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| 关 键 词： | 超导体 失超机制 热分析 |
Thermal Analysis On the MachanismofLoseSuperconductivity of Y-Ba-Cu-O High Temperature Superconductor |
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| ZHONG SHAN CHEN LINGWU REN JIAYING XU ZIJI YU YONGQIN ZHANG XIAOWEN JING BAIQIANG SHI HAN.Thermal Analysis On the MachanismofLoseSuperconductivity of Y-Ba-Cu-O High Temperature Superconductor[J].Journal of Shanghai Normal University(Natural Sciences),1990(3). |
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| Authors: | ZHONG SHAN CHEN LINGWU REN JIAYING XU ZIJI YU YONGQIN ZHANG XIAOWEN JING BAIQIANG SHI HAN |
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| Institution: | Department of Chemistry |
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| Abstract: | The machanism of lose-superconductivity.of Y-Ba-Cu-O system is studied with methods of thermal analysis. Results show that Ba(OH)_2 and BaCO_3 produceddue to water vapor and CO_2 are the main reason of lose-superconductivity for the superconductor in the air. This result could be useful for keeping high temperature superconductor. |
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| Keywords: | superconductor machanism of lose-superconductivity thermal analysis |
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