Method for providing heat resistant domain refinement of electri

Details Method for providing heat resistant domain refinement of electri Method for providing heat resistant domain refinement of electri

1988-03-03

1990-04-10

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148121, 21912112, 21912135, H01F 104

Patent

active

049157507

ABSTRACT:
A method is provided for heat resistant domain refinement of texture annealed and insulation coated grain-oriented silicon steel strip and amorphous magnetic materials by subjecting at least one surface of the steel to an electron beam treatment to produce permanent defects to effect domain refinement with narrow substantially parallel bands of treated regions separated by untreated regions substantially transverse to the direction of strip manufacture.

REFERENCES:
patent: 3999923 (1976-11-01), Takashina et al.
patent: 4554029 (1985-11-01), Schoen et al.
patent: 4652316 (1987-03-01), Beckley
patent: 4655854 (1987-04-01), Nishiike et al.
patent: 4750949 (1988-06-01), Kobayashi et al.

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