METHOD FOR THE MANUFACTURE OF A SUPERCONDUCTOR WITH A LAYER OF THE A-15 PHASE ON THE SYSTEM NB-A1-SI

摘要

The invention concerns a method for the manufacture of a superconductor with a layer of the A-15 phase of the system Nb-Al-Si. According to the invention, a niobium carrier is provided with a layer about 0.5 to 5 .mu.m thick consisting of Nb3(Al,Si), aluminum and silicon by placing it in an aluminum melt which contains up to 10 atomic percent of silicon and a small amount of niobium and is heated to 850 to 1300.degree.C, and then the niobium carrier pro-vided with this layer is annealed in an inert atmosphere for at least 0.5 seconds to form the layer of the A-15 phase.