| 摘要 |
PURPOSE:To provide an electromagnetic wave absorptive material for a TV frequency band, in which the disadvantage in a process and cost of a baked ferrite tile is eliminated. CONSTITUTION:A magnetic granule is mixed with cement, and formed in thickness from 10mm to 50mm. Cement is contained at a dry weight ratio of 5%-25%, and a ratio from 2mm to 8mm within the crushed grain-size range of the magnetic granule is kept at a value from 10% to 80%. |
