High strength porcelain and method therefor
US5461015A · kind A · utility
7Cited by
25References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Aug 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C10/0009
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A porcelain having 9 to 55% by weight of SiO.sub.2, 36 to 87% by weight of Al.sub.2 O.sub.3, 0 to 2.0% by weight of Fe.sub.2 O.sub.3, 0 to 1.0% by weight of TiO.sub.2, 0 to 0.5% by weight of CaO, 0 to 0.5% by weight of MgO, 1.0 to 4.0% by weight of K.sub.2 O and Na.sub.2 O combined, and 0.25 to 25.0% by weight of bismuth oxide is disclosed. The porcelain has unexpectedly high unglazed bending strength and may be used for dielectric and structural applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.