Crystal growth mechanism of YBCO superconductors prepared by unidirectional solidification method

Enzhi Gao, Jinshan Li, Rui Hu, Hongchao Kou, Haitao Cao, Pingxiang Zhang, Iian Zhou

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Y123 and Y211 powders were synthesized by solid-state reaction method. YBCO superconductor specimens were prepared by unidirectional solidification technique. The microstructure and the structural characteristics were observed by means of the optical microscope, X-ray diffraction (XRD), scanning electron microscope (SEM). The results showed that the specimen have a highly aligned structure, it was observed obvious laminated structure of Y123 crystal. Crystal growth mechanism of YBCO was investigated. Jackson's factor of Y123 crystal was calculated. Interface form was judged tentatively theoretically. The specimen was rapidly quenched by quick pulling. Solid/liquid interface structure was observed. It was concluded that a-b plane was faceted grow forms and layer growing along c-axial on a-b plane.

源语言英语
主期刊名Progress in Light Metals, Aerospace Materials and Superconductors
出版商Trans Tech Publications Ltd
2085-2090
页数6
版本PART 4
ISBN(印刷版)0878494324, 9780878494323
DOI
出版状态已出版 - 2007
活动2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006 - Beijing, 中国
期限: 25 6月 200630 6月 2006

出版系列

姓名Materials Science Forum
编号PART 4
546-549
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006
国家/地区中国
Beijing
时期25/06/0630/06/06

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