何佳闰,邹贵生,郭伟,吴爱萍,白海林,柴筱,任家烈,郑明辉,肖玲

• 1:清华大学机械工程系和先进成形制造教育部重点实验室
• 2:北京有色金属研究总院

摘要(Abstract)：

采用YBCO基和YbBCO基两种超导钎料对YBCO高温超导块材进行了钎焊连接,测试比较了原始超导块材和经过氧恢复处理的钎焊接头的磁浮力,以评价块材和钎焊接头的超导性能,并对YBCO超导块材的钎缝组织进行了微观分析。结果表明,在本文工艺条件下,钎焊接头的磁浮力密度最高可达原母材的79.4%。采用钎焊连接技术可以实现高性能YBCO超导块材的大尺寸化。微观组织分析表明,钎缝区出现了Y211相或(Y,Yb)211相的富集,211相的富集对接头的超导电性有不利影响。

关键词(KeyWords)： YBCO块材;钎焊;磁浮力;超导性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50705050);; 北京市自然科学基金项目(3093020)

作者(Author): 何佳闰,邹贵生,郭伟,吴爱萍,白海林,柴筱,任家烈,郑明辉,肖玲

DOI: 10.13289/j.issn.1009-6264.2010.06.030

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