PREPARATION OF HIGH-PURITY 110-K PHASE IN THE (BI, PB)-SR-CA-CU-O SUPERCONDUCTOR SYSTEM USING A SOLUTION METHOD

被引：19

作者：

CHIANG, C

SHEI, CY

HUANG, YT

LEE, WH

WU, PT

机构：

[1] Material Research Laboratories, Industrial Technology Research Institute, Hsinchu, Chutung

来源：

PHYSICA C | 1990年 / 170卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90004-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A solution method has been demonstrated to purify the 110 K superconducting phase in the (Bi, Pb)-Sr-Ca-Cu-O system. Oxalic acid was used to chelate metal cations from the nitrates. The amount of chelating agent impacts the cation absorption in the precursor. The higher purity 110 K superconducting phase can be obtained in the shortest time and at the lowest sintering temperature. X-ray diffraction, resistivity and magnetization measurements all indicated positive evidence. The process can be expedited when the stoichiometry was enriched by calcium and copper. The preparation technique is considered valuable to purify multi-phase superconductors for mass production. © 1990.

引用

页码：383 / 387

页数：5

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