Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1973-10-11
1976-01-06
Satterfield, Walter R.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148 315, 148122, 428432, 428471, H01F 104
Patent
active
039309053
ABSTRACT:
A steel object, such as sheet and strip for motors, is provided with a heat-resistant, electrically insulating coating in the form of a layer of calcium titanate. An intermediate layer of silicate may be provided between the steel surface of the object and the layer of titanate. The intermediate layer is preferably a silicate of one or more alkaline earth metals or of aluminum, and especially a silicate of magnesium.
The coating of calcium titanate may also contain a vanadium compound. Likewise, a layer of phosphate may be provided on the outside of the layer of titanate.
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patent: 2689185 (1954-09-01), Soyck
patent: 3396044 (1968-08-01), Satterfield
patent: 3627594 (1971-12-01), Yamamoto et al.
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patent: 3827922 (1974-08-01), Boggs et al.
patent: 3832245 (1974-08-01), Akerblom
Ban, Y. S., et al.; Thin Films of Semiconductors & Dielectrics, in Journ. Mater. Sci., 5(11), 1970 pp. 978-982.
Allmanna Svenska Elektriska Aktiebolaget
Satterfield Walter R.
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