Production of ferrites for magnetostrictive vibrators

Details Production of ferrites for magnetostrictive vibrators Production of ferrites for magnetostrictive vibrators

1976-03-04

1979-04-24

White, Robert F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

264DIG58, 335215, 335296, 335302, 366127, H01F 702

Patent

active

041514327

ABSTRACT:
A ferrite for magnetostrictrive vibrators is produced by the simple process of press forming a preformed structure formed from starting powder of magnetite or a mixture of magnetite and ferric oxide, said powder having an average particle size d (.mu.) of from 0.02 to 5.0 .mu., sintering this structure in an atmosphere wherein the partial pressure of oxygen is from 10.sup.-1 to 10.sup.-11 atmosphere at a temperature of from 1,000.degree. to 1,350.degree. C. and which will meet the requirement:

REFERENCES:
patent: RE28381 (1975-04-01), Edson
patent: 3027327 (1962-03-01), Blank
patent: 3375195 (1968-03-01), Brockmon et al.
patent: 3717039 (1973-02-01), Zinker
patent: 3753058 (1973-08-01), Edson

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