喷雾热分解法制备铋系超导初级粉成分研究  

Chemical Analysis of Bi-Based HTS Raw Powders Prepared by Spray-Pyrolysis

作　　者：杜风贞[1] 华志强[1] 段镇忠[1] 姚永勋[1] 李月南[1] 冯日宝[1] 栾文洲[1] 

机构地区：[1]北京有色金属研究总院分析测试所,北京100088

出　　处：《稀有金属》2005年第6期885-889,共5页Chinese Journal of Rare Metals

基　　金："十五"863超导高技术研究资助(2002AA306113)

摘　　要：利用喷雾热粉解法制备铋系超导初级粉末,对初级粉末成分均匀性、准确性及所获得的前驱粉、短样带材进行了研究。实验表明,采用不同工艺参数的喷雾热粉解法,能够工程化制备成分准确、均匀的超导初级粉末,选择相同的后处理工艺制备成前驱粉末,再经相同的PIT工艺制备短样带材,获得了超过25 A的临界电流。Bi-based HTS raw powders were prepared by spray-pyrolysis method. Its chemical homogeneity, accuracy and precursor powders, short tapes prepared with this raw powder were studied. The result indicates that homogeneous and accurate raw powder can be up-scaling prepared, with the precursor powder obtained by different spray-pyrolysis and the same heat treatment, then short HTS tapes are prepared with the same PIT process, the Ic of this tape is up to 25 A.

关 键 词：超导 喷雾热分解 初级粉末 前驱粉 成分分析 

分 类 号：TB34[一般工业技术—材料科学与工程] TB44