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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Ca含量对Bi-2223超导带材的结构及电流传输性能的影响
, PP. 799-802
Keywords: Bi-2223超导带材,Ca含量
Abstract:
采用喷雾干燥法制备了4种不同Ca含量的BSCCO2223初始粉末,并研究了Ca掺杂对Bi-2223银包套超导带材的相转化、微观结构和电流传输性能的影响.实验表明,增加Ca含量促进了2223相的转化和提高了带材的临界电流,但同时也在超导芯中引入了较多的富Ca的非超导杂相.分析认为,较高的Ca含量增加了体系烧结过程中液相的含量,进而促进了相转化和晶粒生长及晶间连接,因而改善了电流传输输能力.
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