The non-trivial dispersion of Y2BaCuO5 particles trapped in the YBa2Cu3O7-x crystal matrix

被引：5
|
作者：
Vandewalle, N [1 ]
Pirard, E
Cloots, R
Ausloos, M
机构：
[1] Univ Liege, Inst Phys B5, SUPRAS, B-4000 Liege, Belgium
[2] Univ Liege, MICA, B-4000 Liege, Belgium
[3] Univ Liege, Inst Chim B6, SUPRAS, B-4000 Liege, Belgium
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 1998年 / 77卷 / 05期
关键词：
D O I：
10.1080/095008398178462
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Micrographs of melt-textured YBa2Cu3O7-x/Y2BaCuO5 composites (123/211) have been digitized. Through image analysis, we point out that the dispersion of the 211 particles is highly inhomogeneous in the melt and in the 123 crystal matrix. Indeed, free 211 particle regions and 211 aggregates are observed. The distribution laws are given. Moreover, the dispersions of 211 particles in the melt and those trapped in the crystal matrix are quite different. We point out that this difference cannot be explained solely by the partial dissolution of the 211 particles during the growth process.
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页码：301 / 306
页数：6
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