Mass Transport and Chemical Demixing of Y-Ba-Cu-O Compounds During Sintering in Temperature Gradients
Editor(s)
Green, David J. and Halloran, John and Johnson, David W. and Klein, Lisa
Abstract
A thin cylindrical powder compact (3-mm diameter by 20-mm) with a nominal composition of YBa2Cu3Ox was sintered in a static temperature gradient of 25°C/mm in air for 12 h. the temperature at the hot end of the sample was maintained at 940°±5°C. Considerable mass transport and chemical demixing occurred along the length of the sample. the results are consistent with the formation of a liquid phase at the hot end of the sample, transport of the liquid down the temperature gradient, and the formation of different eutectic compositions along the length of the sample. the implications for processing high-Tc superconductors in the system Y-Ba-Cu-O are discussed.
Recommended Citation
M. N. Rahaman et al., "Mass Transport and Chemical Demixing of Y-Ba-Cu-O Compounds During Sintering in Temperature Gradients," Journal of the American Ceramic Society, Wiley-Blackwell, Jan 1988.
The definitive version is available at https://doi.org/10.1111/j.1151-2916.1988.tb05066.x
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
0002-7820; 1551-2916
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1988 Wiley-Blackwell, All rights reserved.
Publication Date
01 Jan 1988
