PREPARATION OF ORTHORHOMBIC YBA2CU3O7-DELTA BY SPRAY-DRYING FORMATE SOLUTIONS

被引：10

作者：

BLOCK, J

DOLHERT, LE

机构：

[1] W.R. Grace and Co.-Conn., Washington Research Center, Columbia, MD 21044

来源：

MATERIALS LETTERS | 1991年 / 11卷 / 10-12期

关键词：

D O I：

10.1016/0167-577X(91)90128-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple, low cost process has been developed for the preparation of orthorhombic YBa2Cu3O7-delta superconducting powder by spray-drying formate solutions. Yttrium oxide, cupric oxide and barium carbonate are dissolved in formic acid and spray-dried. The spray-dried powder is "charred" at 95-degrees-C prior to calcination to avoid undesirable melting and/or dissolution. The charred powder is calcined to produce phase-pure, superconducting YBa2Cu3O7-delta product. Superconducting powder can also be prepared from acetate solutions.

引用

页码：334 / 338

页数：5

共 16 条

[1]

BLOCK J, 1989, Patent No. 4863521

[2] BULK SUPERCONDUCTIVITY AT 36 K IN LA1.8SR0.2CUO4 [J].