Protective cladding for a molybdenum substrate
US4977001A · kind A · utility
14Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Jan 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1317
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cladding for a molybdenum body such as a molybdenum tube for protecting the molybdenum from corrosive high temperature environments. The cladding contains oxides of molybdenum, aluminum, silicon and alkali metals in about the following percentages by weight of the total metal content: molybdenum 18-40 percent; aluminum 10-25 percent; silicon 25-50 percent; and, alkali metals 8-12 percent. The cladding may be formed by bringing the molybdenum body into contact in the presence of oxygen, with a refractory containing oxides of aluminum, silicon and alkali metals at a temperature greater than 400.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.