Ceramic body based on aluminum titanate and including a glass phase
US7071135B2 · kind B2 · utility
10Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 7, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N3/0222
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic body comprising a crystal phase of aluminum titanate in an amount of 50 to 95% by weight, and a glass phase in an amount of 5 to 50% by weight. The inventive ceramic body may include a second crystal phase, for example mullite in an amount of up to 40% by weight. The glass is an aluminosilicate including, in weight percent on an oxide basis, of 50–90 SiO2, 1–25 Al2O3, 0.5–10 TiO2, 0.5–20 R2O, where R is selected from the group consisting of Li, Na, K, Ru, Cs, Fr, and 0.5–20 R′O, where R′ is selected from the group consisting of Be, Mg, Ca, Ba, Ra, and wherein the ceramic body includes not more than 2% by weight Fe2O3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.