Production process of ferrite stainless steel covered with oxide

Details Production process of ferrite stainless steel covered with oxide Production process of ferrite stainless steel covered with oxide

1988-11-29

1991-05-21

Silverberg, Sam

Catalyst, solid sorbent, or support therefor: product or process

Miscellaneous

148277, 148285, 4273839, 427431, 4274301, C23C 800

Patent

active

050175440

ABSTRACT:
This invention concerns a production process of ferrite stainless steel covered with oxide whisker suitable for metal catalyst supports in automobile's exhaust gas converters, which comprises plating a ferrite stainless steel with aluminum, diffusing the aluminum into the stainless steel by heating in vacuum or in a non-oxidizing gas so that the surface of the ferrite stainless steel turns into an aluminum-enriched ferrite phase, and allowing oxide whisker to grow there by heating in the air.

REFERENCES:
patent: 4729912 (1988-03-01), Kilbane
patent: 4837091 (1989-06-01), Nickola
patent: 4915751 (1990-04-01), Vaneman

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