Studies of Grain Boundaries in Melt Textured YBa(2)Cu(3)O(x).

Veal, B. W. ; Claus, H. ; Chen, L. ; Paulikas, A. P.

Technical Information Center Oak Ridge Tennessee

关键词: Grain boundaries;    Magnetization;    Yttrium oxides;    Barium oxides;    Copper oxides;   

RP-ID  :  DE200243048

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Tilt grain boundaries were studied in bi-crystal samples of melt textured YBa(sub 2)Cu(sub 3)O(sub x). Grain boundary critical current densities J(sub CB) were obtained from SQUID magnetization measurements on ring samples that contain the grain boundary. The dependence of JCB on oxygen stoichiometry and oxygen ordering were investigated and preliminary studies of grain boundary doping with selected cations, including Ca, Sr, and Bi were undertaken.