British Technology Group Limited

Carpenter Technology Corporation

Jan E Evetts

Colin R Walters

Francis J Farmer

Thomas J Hawksley

Rodney Major

Bartlomiej Andrzej Glowacki

Robert E Somekh

The invention provides an improved substrate for growing layers of oxide superconductor materials for use in high current engineering applications. The invention also provides superconducting laminates based on the inventive substrates, and processes for the manufacture thereof. The substrate includes an alloy layer that is formed of either a cube-textured FeNi alloy containing about 47% Ni to 58% Ni, or (b) a cube-texture Ni&mdash;Cu alloy in the composition range 41% Ni to 44% Ni. The substrate may further include an oxide buffer layer covering a surface of the alloy layer.

Substrate materials

Component and method for fabricating superconducting wire

Method of fabricating an elongated artefact

A method of manufacture of thin film devices involves the sputtering of an epitaxial barrier layer (11) of a metallic oxide such as magnesia on to which a further epitaxial thin film (12) is deposited. The substrate is preferably alumina and the thin film may be a high temperature superconductive compound of yttrium, barium, copper and oxygen.

Epitaxial deposition

Growing community of inventors

Cambridge, United Kingdom

Jan E Evetts