| 溶胶-凝胶法快速制备Bi2Sr2CaCu2Oy超导体粉末 |
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| 引用本文： | 祁阳,陈万世,张彩碚,杨华哲.溶胶-凝胶法快速制备Bi2Sr2CaCu2Oy超导体粉末[J].东北大学学报(自然科学版),2006,27(4):465-468. |
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| 作者姓名： | 祁阳 陈万世 张彩碚 杨华哲 |
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| 作者单位： | 东北大学,理学院,辽宁,沈阳,110004;东北大学,理学院,辽宁,沈阳,110004;东北大学,理学院,辽宁,沈阳,110004;东北大学,理学院,辽宁,沈阳,110004 |
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | 采用络合物型溶胶-凝胶法,快速制备了高纯度的Bi2Sr2CaCu2Oy(Bi-2212)超导体粉末.以金属硝酸盐为反应物,以乙二胺四乙酸(EDTA)为络合剂制备了一次凝胶,并在此基础上进一步加热制备了二次凝胶.将自发燃烧后的一次凝胶和二次凝胶在850℃下烧结10 h.X射线衍射分析结果表明,上述两种工艺均能够获得Bi-2212相,但二次凝胶工艺更有利于Bi-2212超导单相的形成.
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| 关 键 词： | 溶胶-凝胶 Bi-2212 超导体 络合剂 二次凝胶 |
| 文章编号： | 1005-3026（2006）04-0465-04 |
| 收稿时间： | 2005-05-27 |
| 修稿时间： | 2005年5月27日 |
Rapid Synthesis of Superconducting Bi2Sr2CaCu2Oy Powders by Sol-Gel Method |
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| QI Yang,CHEN Wan-shi,ZHANG Cai-bei,YANG Hua-zhe.Rapid Synthesis of Superconducting Bi2Sr2CaCu2Oy Powders by Sol-Gel Method[J].Journal of Northeastern University(Natural Science),2006,27(4):465-468. |
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| Authors: | QI Yang CHEN Wan-shi ZHANG Cai-bei YANG Hua-zhe |
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| Institution: | School of Sciences, Northeastern University, Shenyang 110004, China. |
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| Abstract: | The high-purity Bi2Sr2CaCu2Oy(Bi-2212) superconducting powder was synthesized rapidly via sol-gel. Metal nitrates were used as reactants with ethylenediaminetetracetic acid (EDTA) used as complexant to prepare primary gel, and the secondary gel was prepared via heating further the primary one. Then, the above two types of gel were sintered separately at 850°C for 10 h. The results of X-ray diffraction (XRD) revealed at that the phase of Bi-2212 can be formed by way of using either primary or secondary gel, but the secondary one is preferable to form the Bi-2212 superconducting single phase. |
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| Keywords: | Bi-2212 |
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