Dielectric ceramic composition
US8178458B2 · kind B2 · utility
0Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Dec 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/77
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dielectric ceramic composition is disclosed. The dielectric ceramic composition of the present invention comprises BaTiO3 as the main component and one or more subcomponents. The one or more subcomponents include Sc2O3, MgCO3, BaSiO3, MnCO3, La2O3, CO3O4 and NiO. An end product of the present invention may be formed after BaTiO3 and the subcomponents undergo the following steps: (1) Wet mixing using a ball mill (2) Sintering in a reducing atmosphere (3) Annealing. The dielectric ceramic composition of the present invention can satisfy the X8R characteristic of the EIA standard and is compact or dense enough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.