Stabilized bismuth oxide
US5006494A · kind A · utility
18Cited by
17References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/453
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a stable bismuth oxide composition having excellent oxygen ion conductivity comprising: from 50 to 90 mole % Bi.sub.2 O.sub.3, from 10 to 40 mole % of a rare earth oxide, such as yttria; and from 0.1 to 10 mole % g an oxide compound, such as ZrO.sub.2 or ThO.sub.2. The composition retains its oxygen ion transport capabilities even after prolonged annealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.