Microstructure of YBa 2 Cu 3 O 7-x Superconductor Synthesized with Y 2 BaCuO 5 , BaCuO 2 and CuO

YBa 2 Cu 3 O 7- x (123) superconductor was synthesized with pre-synthesized Y 2 BaCuO 5 (211), BaCuO 2 and CuO powder. The development of microstructures in this system was studied in detail. Highly densified and well aligned 123 phase can be obtained by a slow cooling heat-treatment and a transient...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 30; no. 1R; p. 43
Main Authors Lee, Soo Young, Ko, Jae Woong, Hai Doo Kim, Hai Doo Kim, Hyung Sik Chung, Hyung Sik Chung
Format Journal Article
LanguageEnglish
Published 01.01.1991
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Summary:YBa 2 Cu 3 O 7- x (123) superconductor was synthesized with pre-synthesized Y 2 BaCuO 5 (211), BaCuO 2 and CuO powder. The development of microstructures in this system was studied in detail. Highly densified and well aligned 123 phase can be obtained by a slow cooling heat-treatment and a transient liquid phase sinterting. The presence of transient liquid phase provides a large driving force for the formation of long plate shape 123 grains. Finely and homogeneously distributed 211 particles are trapped in 123 phase. A well-aligned grain structure of 123 phase was produced by the applying of a slow cooling heat-treatment to this system.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.30.43