Process for producing a sturdy refractory metal oxide article
US5240407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/62231
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for producing a sturdy refractory metal oxide article includes the steps of heating a substrate of organic material impregnated with a metal compound to thermally decompose the compound without substantial thermal decomposition of the substrate, further heating to decompose and remove the organic material and complete conversion of the compound to a metal oxide so that a metal oxide replica of the substrate remains and further heating to sinter and densify the replica such that the replica has a strength (shock resistance) figure of merit of at least three g-meters and the replica retains such strength after heating to 1500 C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.