Polycrystalline alumina articles
US7456122B2 · kind B2 · utility
4Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Oct 29, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9623
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Polycrystalline alumina and methods for manufacturing polycrystalline alumina exhibiting improved transmission in the infrared region. In one embodiment, the percent real in-line transmittance is within about 2% of sapphire at selected wavelengths. In one or more embodiments, polycrystalline articles exhibit improved mechanical properties such as thermal shock resistance and hardness, which may find use in armor applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.