MnZnCo-BASED FERRITE
AssigneeJfe Chemical Corporation
InventorsAzumi NOJIMA, Naoki SOGA, Yukiko NAKAMURA
Life of this patent
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Abstract
To provide MnZnCo—based ferrite with small magnetic losses over a wide frequency range and a wide temperature range. Disclosed is MnZnCo—based ferrite containing basic components and auxiliary components, in which the basic components are Fe2O3: 51.00 mol % or more and less than 58.00 mol %, ZnO:6.00 mol % or more and less than 13.00 mol %, and CoO:more than 0.10 mol % and 0.50 mol % or less, with the balance being MnO, and the auxiliary components are 50 mass ppm to 500 mass ppm of Si in terms of SiO2, 200 mass ppm to 2000 mass ppm of Ca in terms of CaO, 85 mass ppm to 500 mass ppm of Nb in terms of Nb2O5, and 5 mass ppm to 20 mass ppm of K, relative to the basic components.
Claims6
MnZnCo—based ferrite consisting of basic components, auxiliary components, and inevitable impurities, wherein
- the basic components are
- Fe2O3:51.00 mol % or more and less than 58.00 mol %,
- ZnO:
- 6.00 mol % or more and less than 13.00 mol %, and
- CoO:more than 0.10 mol % and 0.50 mol % or less,
- with the balance being MnO, and
- the auxiliary components are
- 50 mass ppm to 500 mass ppm of Si in terms of SiO2,
- 200 mass ppm to 2000 mass ppm of Ca in terms of CaO,
- 85 mass ppm to 500 mass ppm of Nb in terms of Nb2O5, and
- 5 mass ppm to 20 mass ppm of K,
- relative to the basic components.
Dependencies are inferred from the claim text.