SIMPLIFIED DEFORMATION-SINTERING PROCESS FOR OXIDE SUPERCONDUCTING ARTICLES
摘要
A method is described to prepare a highly textured oxide superconductor article in a single deformation-sinter process. A precursor article including a plurality of filaments comprising a precursor oxide having a dominant amount of a tetragonal BSCCO 2212 phase and a constraining member substantially surrounding each of the filaments is provided. Each of the filaments extends along the length of the article. The oxide article is subjected to a heat treatment at an oxygen partial pressure and temperature selected to convert a tetragonal BSCCO 2212 oxide into an orthorhombic BSCCO 2212 oxide and, thereafter, roll worked in a high reduction draft in a range of about 40% to 95% in thickness so that the filaments have a constraining dimension is substantially equivalent to a longest dimension of the oxide superconductor grains. The rolled article is sintered to obtain a BSCCO 2223 oxide superconductor.
申请公布号
NZ310093(A)
申请公布日期
1999.10.28
申请号
NZ19960310093
申请日期
1996.06.05
申请人
AMERICAN SUPERCONDUCTOR CORP
发明人
LI, QI;PODTBURG, ERIC R;WALSH, PATRICK JOHN;CARTER, WILLIAM L;RILEY, GILBERT N;RUPICH, MARTIN W;THOMPSON, ELLIOTT;OTTO, ALEXANDER