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Bi-Sr-Ca-Cu-O 高温超导体材料的制备与研究

INVESTIGATIONS ON THE HIGH Tc SUPERCONDUCTOR OF Bi-Sr-Ca-Cu-O

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【Author】 Zhou Eyou, Wu Meiying, Zhao YonggangLiu Wenqing, Gong Shiming (Shanghai Institute of Metallurgy, Academia Sinica)

【机构】中科院上海冶金研究所；中科院上海冶金研究所；

【摘要】 Bi-Sr-Ca-Cu-O 高温超导体的超导电性对热处理条件很敏感。采用接近样品熔点的烧结温度可有效地抑制85K 相形成。经882℃烧结后再进行800℃退火的样品,其 Tc(onset)≌115K,Tc(zero)≌99K。更多还原

【Abstract】 In this paper, the high Tc superconductor of Bi-Sr - Ca-Cu-O was investigated. It was found that the superconducting characteristics of this material is very sensitive to the thermal treatment.Sintering near the melting point of this material can effectively restrain the formation of the 85K superconducting phase. Sintered at 882℃ and then annealed at 800℃, the Tc (onset) and Tc(zero)of the sample reach about 115K and 99K respectively.更多还原

【关键词】高温超导体； Bi-Sr-Ca-Cu-O；烧结温度；热处理条件；超导转变温度；零电阻；晶体颗粒；衍射谱；衍射峰；温度曲线；

【文献出处】低温与超导 ,Cryogenics and Superconductivity , 编辑部邮箱 ,1989年02期

【被引频次】1
【下载频次】50

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