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不锈钢基底高电流密度YBCO超导线材
High Current Density YBCO Superconducting Tape on Stainless Steel Substrates
【摘要】 室温下应用Ar+ 离子源辅助准分子脉冲激光沉积(002)取向的YSZ(Yttria-stabilized zirco-nia)过渡层薄膜于不锈钢基底上;基底加温至750℃,用准分子脉冲激光沉积高电流密度YBCO(YBa2Cu3O7- x) 高温超导线材。实验结果表明:YBCO 超导线材临界温度Tc ≥90 K (R=0),临界电流密度Jc ≥1×106 A/cm 2(77 K,0 T)。
【Abstract】 The (002) directional Yttria Stabilized Zirconia (YSZ) buffered layer film was deposited on the stainless steel substrate with the Ar + ion beam assistence at room temperature,and then the YBa 2Cu 3O 7-x (YBCO) film was deposited on the YSZ/stainless steel substrate at 750℃ by pulsed laser ablation. The experimental results show that the critical temperature and the critical current density of the YBCO superconducting film are 91 K (R=0) and 1.2×10 6 A/cm 2 (77 K, 0 T) respectively.
【关键词】 高电流密度YBCO线材;
激光沉积法;
离子束辅助;
不锈钢基底;
【Key words】 high current density YBCO tape; pulsed laser deposition; ion beam assistance; stainless steel substrate;
【Key words】 high current density YBCO tape; pulsed laser deposition; ion beam assistance; stainless steel substrate;
【基金】 国家自然科学基金!资助项目(59602004)
- 【文献出处】 中国激光 ,CHINESE JOURNAL OF LASERS , 编辑部邮箱 ,2000年01期
- 【分类号】TM26
- 【下载频次】58