Process for preparing ceramic materials free from auto-adhesion
US5435946A · kind A · utility
0Cited by
2References
3Claims
0Family size
Inventors
Key dates
| Filing date | Oct 25, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Oct 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/92
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for the preparation of ceramic materials for parts having friction surfaces subject to friction and free from auto/self-adhesion under stress or during aging. A precursor of the ceramic undergoes successive operations of pressing, sintering, polishing the surface obtained, cleaning the solid gangue resulting from the polishing, roasting in the presence of oxygen, and a treatment aimed at increasing the dielectric susceptibility and homogeneity of the ceramic material adjacent the friction surfaces and to increase the mobility of charges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.