Electric rotary machine having superconducting rotor

Details Electric rotary machine having superconducting rotor Electric rotary machine having superconducting rotor

1989-02-09

1990-03-27

Kastler, Scott

Metal treatment

Stock

Age or precipitation hardened or strengthened

310 52, 420457, H02K 900

Patent

active

RE0331864

ABSTRACT:
An electric rotary machine (for example, a dynamoelectric machine) having a superconducting rotor is disclosed in which an outer shielding member for protecting a superconducting field winding from the influence of the magnetic flux from the stator side and for interrupting heat radiated from the normal temperature side is made of a nickel alloy containing not more than 0.3% carbon, not more than 1% silicon, not more than 2% manganese, not more than 1.5% titanium, from 2 to 8% aluminum, from 8 to 40% copper, and not less than 55% nickel for the balance by weight. The nickel alloy has a structure that a .gamma.'-phase precipitation is formed by aging in an austenitic matrix, and is non-magnetic at 20.degree. C.

REFERENCES:
patent: 1755555 (1930-04-01), Mudge
patent: 2234955 (1941-03-01), Bieber et al.
patent: 3578440 (1971-05-01), Eiselstein et al.
patent: 4039870 (1977-08-01), Sterrett
patent: 4171494 (1979-10-01), Yamaguchi et al.
patent: 4642495 (1987-02-01), Mori et al.
Huntington Alloys, Monel Alloys, International Nickel Co. Inc., pp. 31-53, 12/72.

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