Method of forming an insulating film on a grain-oriented silicon

Details Method of forming an insulating film on a grain-oriented silicon Method of forming an insulating film on a grain-oriented silicon

1979-04-23

1980-12-30

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 27, H01F 104

Patent

active

042421551

ABSTRACT:
A highly adhesive and uniform insulating film can be formed on a grain-oriented silicon steel sheet without deteriorating the iron loss of the steel sheet by the use of a magnesia series annealing separator containing a strontium compound.

REFERENCES:
patent: 2394047 (1946-02-01), Elsey et al.
patent: 3477881 (1969-11-01), Wada et al.
patent: 3582407 (1971-06-01), Steger et al.
patent: 3627594 (1971-12-01), Yamamoto et al.
patent: 3930905 (1976-01-01), Akerblom
patent: 3959034 (1976-05-01), Akerblom
patent: 4010050 (1977-03-01), Choby

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