Effect of specific surface area on growth and porosity of oxide superconducting ceramic YBCO single domain

C. P. Zhang, X. Chaud, H. T. Cao, E. Beaugnon, L. Zhou

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

The effect of specific surface area on the growth and the porosity of oxide ceramic superconductor YBCO single domain are investigated. The enhancement of growth depth depends on the large specific surface area σ. When the specific surface area σ is more than the critical value 200mm 2/g, the YBCO single domain is full-growth in the sample of size Φ20mm×18mm. It reveals that a large specific surface area providing an effective tunnel of oxygen diffusion for the crystal growth. On the other hand, this tunnel makes oxygen gas emitting out resulting in porosity diameter decreased. The mean porosity diameter is observed as 5μm in hole sample smaller than 80μm in plain sample. The porosity distribution is calculated as 1/(100μm)2 in plain sample and 8/(10μm)2 in hole sample.

源语言英语
主期刊名High-Performance Ceramics VI
出版商Trans Tech Publications Ltd
346-349
页数4
ISBN(印刷版)0878492747, 9780878492749
DOI
出版状态已出版 - 2010
活动6th China International Conference on High-Performance Ceramics, CICC-6 - Harbin, 中国
期限: 16 8月 200919 8月 2009

出版系列

姓名Key Engineering Materials
434-435
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

会议

会议6th China International Conference on High-Performance Ceramics, CICC-6
国家/地区中国
Harbin
时期16/08/0919/08/09

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