Material composition for fired ceramic articles having a high degree of porosity and crushability characteristics
US4221594A · kind A · utility
4Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1977 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Oct 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B38/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A reactant fugitive filler material is employed in a material composition which includes alumina-based ceramics of one or more particle sizes. The reactant fugitive material provides sufficient reactant material at an elevated temperature to form a fired ceramic article which has a porous microstructure in which the grain morphology is characteristic of grains which have undergone vapor phase transport action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.