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COMPOSITE REACTION TEXTURING: A NOVEL FABRICATION PROCESS FOR HIGH TEMPERATURE HIGH CURRENT SUPERCONDUCTOR WIRES AND SHAPED COMPONENTS

Objective


A new process for advanced conductor fabrication has been developed from initial conception to a fully applicable technology that is already taking an important place in a number of application areas. The Composite Reaction Texturing (CRT) process developed has many features that are unique and it is very likely that it will take an important position amongst those processes that are eventually selected for full commercial production. The particular features of the CRT process are: the CRT process is European technology patented world-wide; the process can be conveniently applied to large conductors of arbitrary shape and cross-section; CRT is suitable for a form-and-react or wind-and-react type of fabrication technology, joints and contacts can easily be made; the process is a near-net-shape forming process and therefore very economical on material; the reaction process is relatively rapid and does not depend on a single modification front; large complex artefacts have strength during the melt reaction process and retain their shape; the processing steps are not particularly demanding; it is possible to fabricate very high critical current conductors, because the conductor cross-section can be large.
The primary technological objective of this proposal is to develop,by focused fundamental research,a novel process for the production of highly texture high critical current conductor. The method, termed Composite Reaction Texturing (CRT), makes use of inert non-superconducting whiskers,or platelets (FWP) to align superconducting grains and control their morphology. The technique has already been proven in principle; the purpose of this research will be to develop the CRT process to the prototype level so that a realistic assessment can be made of its industrial promise. The process has a number of unique features that distinguish it from other methods being investigated over world and make it attractive for industrial application. Conductors can be fabricated with a large cross-section to carry high currents and are suitable for wind-and-react processing,thereby avoiding many of the difficult mechanical and handling problems of these materials.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

University of Cambridge
Address
Pembroke Street
CB2 3RA Cambridge
United Kingdom

Participants (2)

DEMOKRITOS
Greece
Address
Nat.centre For Scient.research
15310 Athens
TU DENMARK
Denmark
Address
Building 204
2800 Lyngby