Material and process to produce low thermal expansion cordierite structures
US4950628A · kind A · utility
28Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Apr 19, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B33/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed toward the improvement of the properties of cordierite sintered structures. The improvement consists essentially of heat treating the calcined kaolin component which when added to the batch of ray materials increases the thermal shock resistance and decreases the coefficient of thermal expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.