Doped BaTiO.sub.3 based compositions
US4863883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Aug 23, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a variety of dispersible doped multi-component BaTiO.sub.3 based powder compositions. The primary particles of each of the products are substantially spherical, have sizes in the range of 0.05 to 0.4 microns and have narrow size distributions. Further, the compositions of the primary particles, forming each powder, are comparable. The amount of dopant oxide or oxides contained in the powder composition ranges from between greater than 1 to 10 mole percent. Regardless of the dopant or dopants utilzied, all the powder compositions of the present invention are identified by the same unique morphological characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.