| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wide temperature range low loss ferrite having sufficiently small power loss in a high temperature range. <P>SOLUTION: The wide temperature range low loss ferrite is a magnetic ferrite material consisting essentially of iron oxide, zinc oxide and manganese oxide wherein the content of the zinc oxide is 8.0-15.0 mol% expressed in terms of ZnO, the content of the iron oxide is 55.0-65.0 mol% expressed in terms of Fe<SB>2</SB>O<SB>3</SB>and the balance is manganese oxide. As subsidiary components, 0-30,000 (excluding 0) ppm CuO, 5,000-60,000 ppm NiO, 280-1,680 ppm CaO and 50-500 ppm SiO<SB>2</SB>are contained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
