Fiber-reinforced ceramic green body and sindered ceramic article obtained therefrom
US6218325A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1998 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Jun 9, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/5935
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A fiber-reinforced ceramic green body having enough green strength and handling strength. The fiber-reinforced ceramic green body is obtained by molding a ceramic composition comprising a ceramic powder, a sintering aid powder, an organic fiber, an aqueous dispersion medium and an optional dispersant. The organic fiber is contained in the ceramic green body in an amount of 0.2-3 parts by weight based on 100 parts by weight of a total of the ceramic powder and the sintering aid powder and uniformly dispersed throughout it. The average length of the organic fiber is 300-1000 .mu.m and the average diameter is 2.5-30 .mu.m. The organic fiber is preferably a synthetic high polymer such as polyester, nylon, etc., and preferably has a hydrophilic nature imparted by surface treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.