Process for fabricating superconducting ceramic materials by HIP

Details Process for fabricating superconducting ceramic materials by HIP Process for fabricating superconducting ceramic materials by HIP

1991-04-22

1992-09-08

Beck, Shrive

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505704, 427 62, 29599, 419 19, 419 20, 419 49, H01L 3924, B22F 700

Patent

active

051458357

ABSTRACT:
A process for fabricating worked superconducting ceramic material of a mean grain size not more than 10 um is disclosed, which comprises the steps of: (a) preparing a metal casing containing a starting powder material having a composition for forming an oxide superconductor; (b) calcining the starting powder material contained in the casing at a temperature range of 850.degree. to 950.degree. C.; (c) subjecting said casing to a HIP treatment; (d) subjecting said casing containing hot deformed material to cold deformation processing; and (e) subjecting said casing to stress relief treatment by annealing in the presence of oxygen.

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