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王永忠 , 朱平乃 , 郝惠清 , 严雪琴 , 邢中枢 , 乔桂文
材料研究学报
<正> 1 引言为了寻找性能更好的氧化物超导体,人们对Y-Ba-Cu-O 系氧化物作了多种元素替代。我们制备了Bi-Sr-Ca-Cu-O 系氧化物,测量了交、直流磁化率和电阻与温度的关系。
关键词: 超导材料 , Bi-Sr-Ca-Cu-O system , casting
SHI Fan ZHOU Shouzeng SHI Zhenhua LI Fubiao Beijing University of Science and Technology , Beijing , China Department of Materials Sicence and Engineering , Beijing University of Science and Technology , Beijing , China
金属学报(英文版)
The Bi-Sr-Ca-Cu-O suterconducting ceramics with T_c(onset)=112K, T_c(R=0)=85.3 K were prepared by quenching process.The Meissner effect of the sample appears at about 84.0 K.
关键词: superconductivity , null
