Production process of ferrite stainless steel covered with oxide whisker
US5055145A · kind A · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Aug 15, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 controlling the continued growth of alumina whiskers on ferrite stainless steel by heating ferrite stainless steel having alumina whiskers on the surface to 1000.degree.-1200.degree. C. for about 1 minute to 1 hour in a non-oxidizing atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.