%0 Journal Article
%T PROPERTIES AND MICROSTRUCTURES OF MELT PROCES-SED (YHo)Ba2Cu3O7-y SUPERCONDUCTOR<br>粉末熔化法(YHo)Ba2Cu3O7-y超导体的性能与微结构
%A FENG YONG
%A ZHOU LIAN
%A <br>冯勇
%A 周廉
%J 物理学报
%D 1992
%I 
%X We have prepared (YHo) Ba2Cu3O7-y superconductors with hige Jc value by powder melting process (PMP) method. The DTA result shows that the melting temperature of Y-system superconductor can be reduced by Ho addition. The Jc value can be improved and the size of 211 phase can be reduced by Ho substitution. Microstructures and X-ray diffraction pattern indicate that the 123 grains are preferentaially aligned with mutually parallel a-b conductive planes. There are a number of twins and fine 211 particles in the sample. It is also found that many crystal defects exist around the 211 phase. These defects may act as pinning centers.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=89CCAC91BF99BA646782F60E88988D3F&yid=F53A2717BDB04D52&vid=2001E0D53B7B80EC&iid=708DD6B15D2464E8&sid=3907BD093A0059AA&eid=C67DF474DF6F21E1&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0