电泳法制备YBCO超导厚膜的电阻特性研究  

Investigation of Resistance Characteristics for YBCOSuperconducting Thick Films Deposited by Electrophoresis

作　　者：朱亚彬[1] 周岳亮[2] 成正维[1] 

机构地区：[1]北京交通大学理学院,北京100044 [2]中国科学院物理研究所光物理实验室,北京100080

出　　处：《北京交通大学学报》2005年第3期1-3,共3页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家重大基础研究资助项目(G1999064604)

摘　　要：采用电泳技术(EPD),将两种粉末YBa2Cu3O7-δ和1g/mmolYBa2Cu3O7-δ+0.4g/mmolY2BaCuO5制备成YBCO先驱膜.采用相应的烧结工艺得到高温超导厚膜A和B.研究高温超导厚膜A、B的表面形貌、晶体结构、超导转变温度.分别对高温超导厚膜A和B进行不同时间的氧处理,其零电阻转变温度有明显变化,并得到最优化的氧处理条件.YBCO precursor films have been fabricated by electrophoresis using YBa2Cu3O7-δ and 1 g/mmolYBa2Cu3O7-δ+0.4 g/mmorY2BaCuO5 powders. YBCO high temperature superconducting thick films were prepared by corresponding sinter processes. The surface morphology, crystal structure and super-normal transition temperature for sample A, B have been investigated. The different zero resistance transition temperatures were observed when annealing times were changed. The optimum conditions of critical temperature were obtained.

关 键 词：超导厚膜 YBCO 特性研究 制备 电泳法 YBA2CU3O7 超导转变温度 电泳技术 烧结工艺 表面形貌 晶体结构 处理条件 高温 零电阻 最优化 时间 

分 类 号：O658.9[理学—分析化学] TB43[理学—化学]