| 溶胶-凝胶法制备Bi-Pb-Sr-Ca-Cu-O微粉 |
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| 引用本文： | 许勤论,彭定坤,孟广耀,俞东,别利剑,尉征慧,杨丽.溶胶-凝胶法制备Bi-Pb-Sr-Ca-Cu-O微粉[J].高等学校化学学报,1991,12(12):1568-1571. |
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| 作者姓名： | 许勤论 彭定坤 孟广耀 俞东 别利剑 尉征慧 杨丽 |
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| 作者单位： | 中国科技大学材料系、结构成分分析中心, 合肥, 230026 |
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| 摘 要： | 以金属醋酸盐为原料,用溶胶-凝胶技术制备了Bi-Pb-Sr-Ca-Cu-O微粉,并用TG、DTA、IR、XRD和TEM等手段对Bi1.85Pb0.35Sr1.9Ca2Cu3.1Oy粉末的热分解和晶化行为以及粉末粒度进行了分析测试,并用此微粉制备出以2223相为主要物相、零电阻为105K的高温陶瓷超导体。
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| 关 键 词： | 溶胶-凝胶法 微粉 高温陶瓷超导体 |
| 收稿时间： | 1990-11-02 |
Preparation of Bi-Pb-Sr-Ca-Cu-O Micro-powder by Sol-Gel Method |
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| Xu Qin-lun,Peng Ding-kun,Meng Guang-yao,Yu Dong,Bie Li-jian,Wei Zheng-hui,Yang Li.Preparation of Bi-Pb-Sr-Ca-Cu-O Micro-powder by Sol-Gel Method[J].Chemical Research In Chinese Universities,1991,12(12):1568-1571. |
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| Authors: | Xu Qin-lun Peng Ding-kun Meng Guang-yao Yu Dong Bie Li-jian Wei Zheng-hui Yang Li |
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| Institution: | Department of Materials Science and Center of Structure and Element Analysis, University of Science and Technology of China, Hefei, 230026 |
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| Abstract: | This paper reports the preparation processes of Bi-Pb-Sr-Ca-Cu-O micro-powder by Sol-Gel method , using metal acetates as starting materials. W analyzed the mechanisms of decomposition of synthesized powders and their crystallization behavior by means of thermo-gravimetric analysis, differential thermal analysis, infrared spectra and X-ray diffraction. Also we determined the sizes of powder decomposed at different temperatures by using transmission electron microscope. Meanwhile a high -l\ ceramic superconductor which has 2223 as the main phase and zero resistance 105K was fabricated by using these micro-powders. |
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| Keywords: | Sol-gel method Micron-powder High-Tc ceramic superconductor |
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