STATUS OF THE DEVELOPMENT OF HIGH-FIELD A15 SUPERCONDUCTORS

The status of the development of multifilamentary high-field A15 superconductors is reviewed briefly. Alternative techniques to circumvent the basic difficulty of fabricating a conductor with a brittle material are described and evaluated. The solid state diffusion or bronze route will remain the dominant technology for some years, however the In Situ" technique is an attractive alternative with comparable Jc and improved mechanical properties. Infiltration might find application in the development of materials for higher magnetic fields than possible with Nb3Sn and V3Ga. The future of powder technology is uncertain. © 1979."