| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Mn-Zn ferrite exhibiting high magnetic flux density at a temperature ranging from a room temperature to a high temperature near 100°C and having low loss characteristic. <P>SOLUTION: The Mn-Zn ferrite having a spinel type crystal structure contains 58.0-65.0 mol% Fe<SB>2</SB>O<SB>3</SB>, 10.0-20.0 mol% ZnO, 0.5-5.0 mol% NiO and the balance being MnO as a basic component composition, contains 0.005 to 0.05 wt.% SiO<SB>2</SB>, 0.01 to 0.1 wt.% CaO, 0.01-0.1 wt.% Nb<SB>2</SB>O<SB>5</SB>, 0.01 to ≤1.5 wt.% CuO as an accessory component composition and contains at least one or more kinds of 0.01 to 0.2 wt.% MoO<SB>3</SB>, 0.01 to 0.1 wt.% WO<SB>3</SB>, 0.01 to 0.1 wt.% Bi<SB>2</SB>O<SB>3</SB>and 0.01-0.2 wt.% V<SB>2</SB>O<SB>5</SB>. <P>COPYRIGHT: (C)2007,JPO&INPIT |
