Powders used for producing Ni-Cu-Zn system ferrite ceramics sintered body and method for manufacturing the same
US8617414B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/94
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The first invention relates to powders for producing a Ni—Cu—Zn system ferrite ceramics sintered body, comprising ferrite calcined powders and NiO powders, wherein the specific surface area of said ferrite calcined powders is within the range of 4.0 m2/g to 14.0 m2/g, the spinel included in said ferrite calcined powders is such that Ni does not solve, the composition of said spinel is such that Fe2O3 is within the range of 49.0 mol % to 60.0 mol % and the remaining comprises CuO and ZnO, and the ratio of ZnO relative to CuO in mole percent is within the range of 1.0 to 4.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.