EFFECT OF TEMPERATURE AND ATMOSPHERE ON STABILITY OF HIGH-TC PHASES IN BI-PB-SR-CA-CU-O SUPERCONDUCTORS

被引：14

作者：

LEE, HK

PARK, K

HA, DH

机构：

[1] Korea Standards Research Institute, Taedok Science Town, Taejon 305-606

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 05期

关键词：

D O I：

10.1063/1.349361

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of temperature and atmosphere on stability of the high-T(c) phase in Bi1.8Pb0.4Sr2Ca2Cu3O(x) superconductors has been investigated using ac susceptibility, x-ray diffraction, and Raman measurements. It is found that the high-T(c) phase becomes unstable due to the structural phase transformation at temperature above 650-degrees-C in O2 of 1 atm. The formation and the decomposition of the high-T(c) phase is found to occur through the medium of the Ca2PbO(x) phase and depends on oxygen partial pressure at temperature above 650-degrees-C.

引用

页码：2764 / 2767

页数：4

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