Manufacture of ductile high-permeability grain-oriented silicon

Details Manufacture of ductile high-permeability grain-oriented silicon Manufacture of ductile high-permeability grain-oriented silicon

1987-06-03

1988-12-27

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

H01F 104

Patent

active

047938730

ABSTRACT:
For making a ductile boron-containing grain-oriented silicon steel, there is practiced, at a late stage in the making of the product either during the final texture anneal or a subsequent anneal, a high-temperature anneal in a reducing atmosphere with the use of a separating-agent coating, particularly magnesium oxide, which contains an effective amount of a compound of molybdenum and/or tungsten.

REFERENCES:
patent: 3676227 (1972-07-01), Matsumoto et al.
patent: 3905842 (1975-09-01), Grenoble
patent: 3941621 (1976-03-01), Lee et al.
patent: 4096001 (1978-06-01), Arendt et al.
High Resolution Investigation of Influence of Boron on Fine-Scale Intergranular Microstructure of 316 L Stainless Steel, Stainless Steel '84 Sep. 3-4, 1984, pp. 85 to 90.

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