Electrical generator or motor structure – Dynamoelectric – Conducting fluid
Patent
1977-03-01
1978-06-06
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Conducting fluid
H02N 402
Patent
active
040938794
ABSTRACT:
An electrode capable of withstanding high temperatures and suitable for use as a current collector in the channel of a magnetohydrodynamic (MHD) generator consists of a sintered powdered metal base portion, the upper surface of the base being coated with a first layer of nickel aluminide, an intermediate layer of a mixture of nickel aluminide - refractory ceramic on the first layer and a third or outer layer of a refractory ceramic material on the intermediate layer. The sintered powdered metal base resists spalling by the ceramic coatings and permits greater electrode compliance to thermal shock. The density of the powdered metal base can be varied to allow optimization of the thermal conductivity of the electrode and prevent excess heat loss from the channel.
REFERENCES:
patent: 3149253 (1964-09-01), Luebke
patent: 3274408 (1966-09-01), Louis
patent: 3280349 (1966-10-01), Brenner et al.
patent: 3430082 (1969-02-01), Yerouchalmi
patent: 3454798 (1969-07-01), Yerouchalmi
patent: 3531421 (1970-09-01), Foex et al.
patent: 3574144 (1971-04-01), Yerouchalmi
Killpatrick Don H.
Marchant David D.
Carlson Dean E.
Duggan Donovan F.
Jackson Frank H.
The United States of America as represented by the United States
Weinberger James W.
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