摘要
室温下应用Ａｒ＋ 离子源辅助准分子脉冲激光沉积 （０ ０ ２） 取向的 ＹＳＺ过渡层薄膜于ＮｉＣｒ 合金基底上；基底加温至７５０ ℃，用准分子脉冲激光沉积ＹＢＣＯ 高温超导薄膜于ＹＳＺ／ＮｉＣｒ 上，并切割成线材．实验结果表明：ＹＢＣＯ 超导线材不但为ｃ－轴取向的，同时为在ａ－ｂ 平面内织构的，其临界温度Ｔｃ≥９０ Ｋ（Ｒ＝ ０），临界电流密度Ｊｃ≥１×１０６ Ａ／ｃｍ ２（７７ Ｋ，０ Ｔ）．
The (0 0 2) directional Yttria Stabiliz Zirconia (YSZ) buffered layer film was deposited on the Hastelloy c 275 substrate with Ar + ion beam assistance at the room temperature. The YBa 2Cu 3O 7- x (YBCO) film was deposited on the YSZ/NiCr Hastelloy c 275 substrate at 750℃ by pulsed laser ablation. The experimental results show that the critical temperature and the critical current density of the YBCO superconducting tape are 90K ( R =0) and 1.1×10 6A/cm 2 (77K,0T) respectively, also the YSZ and YBCO films are normal orientation to the film surface and in plane textured.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第9期41-44,共4页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
高电流密度
YBCO线材
激光沉积法
超导体
high current density YBCO tape
pulsed laser deposition
ion beam assistance
Hastelloy c 275 substrate Huang Xintang Dr
State Key Lab. of Laser Technology, HUST, Wuhan 430074, China .
