| 液相混合铋系超导前驱粉体工艺研究 |
| |
| 引用本文： | 段镇忠,李月南,姚永勋,栾文洲,王媛,冯日宝,周其,古宏伟.液相混合铋系超导前驱粉体工艺研究[J].低温物理学报,2003,25(4):300-303. |
| |
| 作者姓名： | 段镇忠 李月南 姚永勋 栾文洲 王媛 冯日宝 周其 古宏伟 |
| |
| 作者单位： | 北京有色金属研究总院超导中心,北京,100088 |
| |
| 基金项目： | 国家重点基础研究发展规划项目 (项目编号 :G1 9990 6 4 6 0 5 )~~ |
| |
| 摘 要： | 本研究采用溶胶凝胶颗粒包覆技术，将钙铜离子均匀包覆在2212颗粒表面，通过适当的热处理，使包覆层转变为Ca2CuO3 CuO相，同时确保2212相结构稳定，从而获得了均匀混合的装管前驱粉体．详细研究了钙铜溶胶体系的胶凝工艺，2212悬浮体系的稳定性以及Ca2CuO3成相温区等工艺参数，并利用XRD，SEM等分析手段，研究了粉体的粒度分布，形貌，相组成及其均匀性．
|
| 关 键 词： | 高温超导材料 钙铜溶胶体系 溶胶凝胶颗粒包覆技术 前驱粉体 制备工艺 液相混合铋系 |
| 修稿时间： | 2003年4月2日 |
FABRICATION OF THE Bi-2223 PRECURSOR POWDER BY LIQUID-MIXED PROCESS |
| |
| DUAN ZHEN ZHONGLI YUE NANYAO YONG XUNLUAN WEN ZHOU WANG YUANFENG RI BAOZHOU QIGU HONG WEI General Research Institute for Nonferrous Metal,Beijing.FABRICATION OF THE Bi-2223 PRECURSOR POWDER BY LIQUID-MIXED PROCESS[J].Chinese Journal of Low Temperature Physics,2003,25(4):300-303. |
| |
| Authors: | DUAN ZHEN ZHONGLI YUE NANYAO YONG XUNLUAN WEN ZHOU WANG YUANFENG RI BAOZHOU QIGU HONG WEI General Research Institute for Nonferrous Metal Beijing |
| |
| Institution: | DUAN ZHEN ZHONGLI YUE NANYAO YONG XUNLUAN WEN ZHOU WANG YUANFENG RI BAOZHOU QIGU HONG WEI General Research Institute for Nonferrous Metal,Beijing100088 |
| |
| Abstract: | A Liquid mixed process for Bi 2223 precursor powder were presented. We have demonstrated that, using this method, the Ca and Cu cation could been coated evenly on the surface of the orthorhombic Bi 2212 particle and calcination in a low oxygen partial pressure resulted in a reactive precursor powder with phase assemblage of orthorhombic 2212 and Ca-2CuO-3+CuO. In addition, the homogeneity of the precursor powder, the particle size and superconducting property were compared to the powders prepared by solid mixed process. |
| |
| Keywords: | Sol gel Bi 2223 Coated precursor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
