WAVE ABSORBING MAGNETIC PARTICLE FOR TV FREQUENCY BAND

摘要

PURPOSE:To facilitate the control of resonance frequency while improving the workability by a method wherein an indispensable impurities in specific composition are used as the title wave absorbing magnetic particles for TV frequency band. CONSTITUTION:ZnO exceeding 14% and not exceeding 35%, Fe2O3 exceeding 30% and not exceeding 55%, Fe2O3%/(Fe2O3%+ZnO%) exceeding 0.60% and not exceeding 0.75% in atomic composition ratio and indispensable impurities are employed as the title wave absorbing magnetic particles for TV frequency band so that the saturated magnetism M may be lowered thereby enabling the resonance frequency to be controlled at the optimum value a little less than the TV frequency. Furthermore, the large size wave absorbent can be easily formed so that the deterioration in the wave absorbency due to the gap between panels may be reduced.