The demonstration of Y{sub 2}BaCuO{sub 5} particle segregation in melt-processed YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} through a computer visualization model
Journal Article
·
· Journal of Materials Research
- Department of Chemical Engineering, University of Notre Dame, Notre Dame, Indiana 46556-4537 (United States)
In melt-processed YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (123) microstructures, often unreacted Y{sub 2}BaCuO{sub 5} (211) particles are observed to be present in an inhomogeneous manner delineating distinguishable patterns. The presence of these patterns in 123 is more clearly observed in the case of low 211 volume concentration and also when the 211 particle size is small. The observed patterns are believed to be due to 211 particle segregation in 123 domains in specific planes during melt texture growth. In the present paper a software program is used to draw a three-dimensional visualization model to demonstrate a possible structure of 211 particle segregation in 123 domains and to explain the presence of observed patterns in the microstructures. The formation of such a 211 particle segregation is explained in the light of previously proposed 123 growth mechanisms. {copyright} {ital 1996 Materials Research Society.}
- Research Organization:
- Purdue Research Foundation
- DOE Contract Number:
- FG02-90ER45427
- OSTI ID:
- 279740
- Journal Information:
- Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 3 Vol. 11; ISSN JMREEE; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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