Method of the manufacture of a superconductor with a layer of the A-15 phase of the system Nb-Al-Si

US4008102A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Alfred Muller · Krefeld, DE
• Arno Fink

Key dates

• Filing date: Oct 31, 1974
• Grant date: Feb 15, 1977
• Expiry date: Oct 31, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49014

Abstract

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 Nb.sub.3 (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.degree. to 1300.degree. C, and then the niobium carrier provided with this layer is annealed in an inert atmosphere for at least 0.5 seconds to form the layer of the A-15 phase.