东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (4): 465-468.DOI: -

• 论著 • 上一篇    下一篇

溶胶-凝胶法快速制备Bi_2Sr_2CaCu_2O_y超导体粉末

祁阳;陈万世;张彩碚;杨华哲;   

  1. 东北大学理学院;东北大学理学院;东北大学理学院;东北大学理学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-04-15 发布日期:2013-06-23
  • 通讯作者: Qi, Y.
  • 作者简介:-
  • 基金资助:
    教育部外事司留学回国人员基金资助项目(2003406)

Rapid synthesis of superconducting Bi2Sr2CaCu2Oy powders by sol-gel method

Qi, Yang (1); Chen, Wan-Shi (1); Zhang, Cai-Bei (1); Yang, Hua-Zhe (1)   

  1. (1) School of Sciences, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-04-15 Published:2013-06-23
  • Contact: Qi, Y.
  • About author:-
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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.

关键词: 溶胶-凝胶, Bi-2212, 超导体, 络合剂, 二次凝胶

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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