THE STUDY OF PHASE-TRANSFORMATION IN YBA2CU3O7-X BY DIRECT OBSERVATION OF THE INTERPHASE BOUNDARY

被引：11

作者：

HUDAKOVA, N

DIKO, P

机构：

[1] Institute of Experimental Physics, Slovak Academy of Sciences, 040 01 Košice

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1990年 / 167卷 / 3-4期

关键词：

Ceramic Materials - Crystals--Structure - Light--Polarization - Yttrium Compounds--Phase Transitions;

D O I：

10.1016/0921-4534(90)90361-H

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The interphase boundary of the YBa2Cu3O7-x transformation from the tetragonal to the orthorhombic phase was studied by direct observation in polarised light using λ and λ/4 compensators. The sample for observation was obtained by partial oxidation of the tetragonal phase at 400°C. Only the orthorhombic phase was observed behind the interphase boundary, which is in contradiction with the opinion that the tetragonal to orthorhombic phase transformation has a thermoelastic martensitic character. © 1990.

引用

页码：408 / 414

页数：7

共 21 条

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