Chemical vapor deposition of fine grained rhenium on carbon based substrates
US5577263A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12625
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for producing a composite element by causing a stream of gaseous rhenium hexafluoride to flow onto a carbon substrate in a chemical vapor deposition reaction. A flow of hydrogen gas causes a reduction of the rhenium hexafluoride to rhenium metal to thereby deposit a uniform layer of rhenium metal onto the surface of the carbon substrate. A fine grain rhenium coating on carbon is produced having an average particle diameter of from about 0.1 to about 25 micrometers. The elements may be used alone or several of them may be bonded together into various articles. Such elements and articles are useful as light weight, high temperature strength, corrosive gas resistant structural elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.