Investigation of a practical superconductor with a copper matrix
Abstract
A variety of techniques for producing superconducting wires from a copper-rich melt were investigated. The wires were then evaluated by measurement of their electrical and magnetic properties at low temperatures. Melting and processing techniques which showed some promise for relatively large scale application were studied in detail. Two additional related investigations are also described: (1) the evaluation of the very low temperature electrical and magnetic properties of specific CuSn and CuNi alloys which are used in various practical superconducting composites now on the market; and (2) a continuation of earlier work to identify the products of internal oxidation in dilute CuFe alloys, since this technique was shown to greatly reduce the resistivity of copper at low temperatures. A summary of the applications for superconducting magnets is also included.
- Publication:
-
Annual Report National Bureau of Standards
- Pub Date:
- December 1978
- Bibcode:
- 1978nbs..reptR....F
- Keywords:
-
- Copper Alloys;
- Cryogenics;
- Electric Wire;
- Superconductors;
- Electrical Properties;
- Magnetic Properties;
- Metal Matrix Composites;
- Process Control (Industry);
- Superconducting Magnets;
- Electronics and Electrical Engineering