Origin of subgrain structure within a domain in melt-processed YBa2Cu3O7

被引：17
|
作者：
Reddy, ES
Rajasekharan, T
机构：
[1] Defence Metallurgical Research Laboratory, Hyderabad - 500 058, P.O. Kanchanbagh
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 21期
关键词：
D O I：
10.1103/PhysRevB.55.14160
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructures of melt-processed YBa2Cu3O7 with different cooling rates were studied by polarized light optical microscope. The present study concentrated mainly on the origin of subgrain structure within domains, where there exist controversies in the literature, as due to the polygonization process in the solid state or during the crystallization process. The present study strongly supports the view that subgrains result from the solidification instabilities during crystallization from the melt rather than due to the polygonization process in the solid state.
引用
收藏
页码：14160 / 14162
页数：3
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