HF-resistant ceramics and use thereof
US5411583A · kind A · utility
7Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Nov 15, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/62222
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Hydrogen fluoride-resistant articles are disclosed which have HF contact surfaces consisting essentially of sintered, single phase, polycrystalline, solid solution alumina and magnesia ceramic. The ceramic has a magnesia content equal to or less than the solubility limit of magnesia in alumina at the sintering temperature for the ceramic. Also disclosed are processes using such surfaces as HF contact surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.