PROCESS OF MANUFACTURE OF SUPERCONDUCTOR BASED ON COMPOUND NbSn Russian patent published in 1999 - IPC

FIELD: electrical engineering. SUBSTANCE: process can be used for design of electrical devices predominantly meant to operate in magnetic fields with density above 10.0 Tm under high densities of current and low hysteresis losses, to manufacture specifically magnetic systems of thermonuclear synthesis plants or nuclear magnetic resonance plants. Primary composition workstock carrying bars from niobium with alloying inserts from alloy Nb-Ti with mass content of titanium from 20.0 to 60.0% and matrix containing copper and tin, stabilizing copper and diffusion barrier separating stabilizing copper from the rest of components of composition workstock are formed. Composition workstock is formed anew to manufacture wire of needed cross-section, then final reaction thermal treatment of wire is conducted at temperature from 600 to 800 C to form superconducting compound Nb₃Sn. Before final reaction thermal treatment low-temperature thermal treatment at temperature from 200 to 500 C is conducted in the course of 1.0 to 100.0 h and later average-temperature thermal treatment at temperature from 520 to 580 C is conducted in the course of 10.0-200.0 h. EFFECT: increased current-carrying capability of conductor, preservation of low-level hysteresis losses and improved adaptability of process of deformation of composite workstock to wire. 1 cl, 5 dwg