Sb_2O_3掺杂对YBa_2Cu_3O_（7－δ）超导性质的影响  

The Effects of Doping Sb_2O_3 on the Superconductivity of Yba_2Cu_3O_(7-δ)Superconductor

作　　者：桂太龙[1] 宋威[1] 梁观斌 李燕飞[1] 

机构地区：[1]哈尔滨科学技术大学

出　　处：《材料科学与工艺》1995年第2期44-48,共5页Materials Science and Technology

基　　金：黑龙江省自然科学基金

摘　　要：研究了Ｓｂ２Ｏ３掺杂的多晶ＹＢａ２Ｃｕ２Ｏ７－δ超导体的超导转变温度和输运临界电流密度Ｊｃ（Ｂ）在磁场中的行为。测量了超导性能对该掺杂浓度的依赖关系。适当浓度的掺杂可使Ｊｃ至少提高一个数量级。对掺杂样品进行了扫描电镜微结构观测和Ｘ射线结构分析。The superconductive transition temperature and critical current density Jc(B)of the YBa2Cu3O7-δdoped Sb2O3 superconductor has been studied.The critical current density Jc(B) depending on doping concentration was also measured.The doping of suitable concentration increases Jc by one order at least.The SEM microstructure analysis and X-ray diffraction analysis were also made.

关 键 词：超导 临界电流密度 弱连接 三氧化二锑 超导合金 

分 类 号：TG132.26[一般工业技术—材料科学与工程]