Invention Grant
US06311386B1 Processing of (Bi,Pb)SCCO superconductor in wires and tapes
失效
(Bi,Pb)SCCO超导体在电线和磁带中的处理
- Patent Title: Processing of (Bi,Pb)SCCO superconductor in wires and tapes
- Patent Title (中): (Bi,Pb)SCCO超导体在电线和磁带中的处理
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Application No.: US09358245Application Date: 1999-07-21
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Publication No.: US06311386B1Publication Date: 2001-11-06
- Inventor: Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
- Applicant: Qi Li , Eric R. Podtburg , Patrick John Walsh , William L. Carter , Gilbert N. Riley, Jr. , Martin W. Rupich , Elliott Thompson , Alexander Otto
- Main IPC: H01L3929
- IPC: H01L3929

Abstract:
A novel process of the production and processing of high quality, high Tc (Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The precursor fabrication includes introducing the reacted mixture having a dominant amount of the tetragonal BSCCO phase into a metal sheath, and sealing the reacted mixture within said sheath, heating the mixture at a second selected processing temperature in an inert atmosphere with a second selected oxygen partial pressure for a second selected time period, the second processing temperature and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. The sealed sheath is deformed to form an elongated precursor article of a desired texture; and thereafter heated at a third selected processing temperature in an inert atmosphere with a third selected oxygen partial pressure for a third selected time period. The third processing temperature and third oxygen partial pressure are cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.
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