Method for making porous, crushable core having an integral outer barrier layer
US4191720A · kind A · utility
13Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1977 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Oct 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B41/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for simultaneously forming an integral barrier layer on selected external surfaces of a fired ceramic article and for increasing the porosity content and crushability characterstics thereof embodies the firing of a ceramic compact comprising a reactant fugitive filler material and a ceramic material in a controlled atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.