Method of making superconducting magnets
Superconducting magnets can produce very high fields and have hitherto usually been made in the form of coils wound from wire of hard-superconductive material. There is, however, a difficulty with many such materials of drawing them into wire form, as they are usually brittle and difficult to work, and there are further difficulties in making good electrical and superconducting connections to coils formed of them. A method of forming superconducting magnet bodies which is less subject to these difficulties is described. A body of superconductive material suitable for magnetization to form a superconducting magnet includes the steps of forming from powder a pressed sintered body of superconductive material in the shape of a cylinder bridged by at least one loop and cutting a thread in the cylinder so as to form it into a solenoid whose turns are bridged by each said loop. The initial powder may be of superconductive material, or it may consist of constituents which react or alloy during the sintering to form superconductive material. Preferably the initial pressing is into the form of a plate continued along an edge by the cylinder, which body is then sintered, and the loop or loops is or are formed by cutting one or more apertures in the plate after the sintering. Where the body includes two or more loops, each of said loops may be provided with a superconducting switch such as a small heater coil, for use in magnetizing the body.
- Assignee:
- General Electric Co. Ltd.
- Patent Number(s):
- US 3427710
- OSTI ID:
- 5282622
- Resource Relation:
- Patent Priority Date: Priority date 10 Dec 1965, United Kingdom of Great Britain and Northern Ireland (UK)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
SUPERCONDUCTING MAGNETS
FABRICATION
PLATES
POWDER METALLURGY
SINTERING
SOLENOIDS
SWITCHES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
METALLURGY
SUPERCONDUCTING DEVICES
420201* - Engineering- Cryogenic Equipment & Devices