Patent ID: 8470194
Filing Date: 2013-06-25
Classification: B32B,C01G,C01P,C04B,H01F

Abstract:
1. Particle mixtures comprising zinc silicate particles and Ni—Zn—Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol % of Fe 2 O 3 , 7.0 to 37 mol % of NiO, 4.5 to 40 mol % of ZnO, 5.0 to 17 mol % of CuO and 1.0 to 8.0 mol % of SiO 2 , all amounts being calculated in terms of the respective oxides, and which have a ratio of an X-ray diffraction intensity from a 113 plane of the zinc silicate to an X-ray diffraction intensity from a 311 plane of the spinel-type ferrite is 0.01 to 0.12.