Armstrong, Westerman, Hattori, McLeland & Naughton
Superconductor crystal and process for preparing the same
 A process for producing a fibrous crystal or single crystal of a superconductor comprising bismuth, strontium, calcium, copper, lead and oxygen, having an atomic composition ratio represented by the formula Bi.sub.2-x Pb.sub.x Sr.sub.1.9-2.1 Ca.sub.1.9-2.1 Cu.sub.3 o.sub.y wherein 0<.times.<0.4 and 10.0<y<11.0, and having a Bi.sub.2 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.10 structure (2223 structure). 
Agency for Industrial Science and Technology
C C Y C
C30B C30B Y10S C30B
inventional inventional additional inventional
Hiroshi Ichiro Toru Hideo Makoto Tomoji
Yamashita Matsubara Ogura Tanigawa Kinoshita Kawai