PROCESS OF MANUFACTURE OF COMPOSITE WIRE FROM OXIDE-METAL CERAMICS OF BSCCO SYSTEM Russian patent published in 1995 - IPC

FIELD: radio engineering. SUBSTANCE: process is used for manufacture of superconductive oxide-metal ceramics when producing current-carrying articles. Starting components are taken in proportion providing for chemical composition of components Bi₂Sr₂Ca₁Cu₂O_8+x or [Bi_1,7Pb(Sn or Sb)_0,3] Sr₂Ca₁Cu₂O_8+x,, are mixed up and preliminary thermal treatment of mixture is conducted. Then mixture is melted and semi-finished product is formed by vacuum pumping directing melt into metal shell. Produced semi-finished product is subjected to plastic metal working by gas extrusion or rolling. After deformation wire is subjected to phase- forming thermal treatment. Then correction thermal treatment is conducted. In addition after phase-forming thermal treatment wire is subjected to rolling into belt with thickness of 0.5-0.1 mm with repeated phase-forming thermal treatment. EFFECT: enhanced manufacturing efficiency and productivity. 12 cl