Boride-alumina composite
US4647405A · kind A · utility
16Cited by
10References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 3, 1983 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Sep 3, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A dense essentially non-porous composite ceramic material of a diboride of group IVa metal, preferably titanium, and alumina in a 3:5 mole ratio has a macroscopically uniform structure made up of non-uniformly dispersed agglomerates of alumina of random shapes and dimensions and a fibrous sponge-like electrically conductive structure of submicronic grains of the group IVa metal boride in intimate wetting contact with the alumina agglomerates. The material is made by reaction hot pressing of coarse grain precursor powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.