VARIATION OF THE OXYGEN-CONTENT OF LEAD-CONTAINING CUPRATES

被引：7
|
作者：
HAUCK, J [1 ]
ALTENBURG, H [1 ]
BISCHOF, B [1 ]
DENKER, S [1 ]
DROSTE, E [1 ]
IPTA, S [1 ]
PLEWA, J [1 ]
机构：
[1] FACHHSCH MUNSTER, FACHBEREICH CHEM INGENIEURWESEN, W-4430 STEINFURT, GERMANY
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 178卷 / 4-6期
关键词：
D O I：
10.1016/0921-4534(91)90090-L
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The variation of oxygen content with temperature and oxygen partial pressure has been studied by DTA, TGA, X-ray diffraction and iodometry for Pb0.5SrLaCu1.5Ox, x approximately 5, (La, Pb)2SrCu2Ox, x approximately 5.6, Pb2SrLaCu2Ox, x = 6-7.9, Pb2Sr2Y0.5Ca0.5Cu3Ox, x = 8-9.6 and PbBaSrYCu3Ox, x = 7-8. The compounds Pb2SrLaCu2Ox and Pb2Sr2Y0.5Ca0.5Cu3Ox containing CuO chains as in Ba2YCu3O7 behave differently - they are semiconducting at high oxygen content. Pb0.5SrLaCu1.5Ox and (La, Pb)2SrCu2Ox with little volatilization of PbO can be used as precursors for the preparation of Pb2SrLaCu2Ox.
引用
收藏
页码：405 / 410
页数：6
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