脉冲激光淀积高电流密度的YBCO超导带材  

Deposition of a High Current Density YBCO Thick Film on NiCr Alloy Substrate Tape by Pulsed Laser

作　　者：王秋良[1] 安承武[1] 王又青[1] 李再光[1] 

机构地区：[1]华中理工大学激光技术国家重点实验室

出　　处：《中国激光》1997年第9期853-856,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金;激光技术国家重点实验室资助

摘　　要：采用脉冲激光加辅助离子源的方法在长为６．０ｃｍ的ＮｉＣｒ合金基带上制备０．１３μｍ厚的Ｙ－ＺｒＯ２（ＹＳＺ）隔离层，再用脉冲激光在ＹＳＺ／ＮｉＣｒ带上制备１．５μｍ厚的ＹＢａ２Ｃｕ３Ｏ７－ｘ超导厚膜形成ＹＢＣＯ／ＹＳＺ／ＮｉＣｒ超导带材。实验测得在７７Ｋ，０Ｔｅｓｌａ下其临界电流密度为８．７５×１０４Ａ／ｃｍ２，超导转变温度为８８．６Ｋ。The buffered layer Y ZrO 2 (YSZ) was deposited on the flexible metallic NiCr substrate tape of 6.0 cm in length by a KrF laser and ion beam assisted deposition (IBAD), and then YBCO superconducting thick films were deposited on the YSZ/NiCr in order to obtain a high current density YBCO superconducting tape for power applications. The thickness of 1.5 μm and 0.13 μm is for the YBCO and the YSZ, respectively. The critical current density of YBCO/YSZ/NiCr is 8.75×10 4 A/cm 2 at 77 K, 0 Tesla, the cirtical temperature is 88.6 K.

关 键 词：YBCO 超导厚膜 超导带材 脉冲激光淀积 激光技术 

分 类 号：TN24[电子电信—物理电子学] TM26[一般工业技术—材料科学与工程]