| 摘要 |
<p>A radio wave absorbent comprising, as a main component, a magnesium-zinc base ferrite material containing 45 to 50 mol % of iron oxide, 7 to 19.7 mol % of magnesium oxide, 24 to 28.5 mol % of zinc oxide, 4 to 16 mol % of copper oxide and 0.1 to 6 mol % of manganese oxide, having a conformable thickness of less than 8 mm, and having a total weight reduced drastically in comparison with conventional radio wave absorbents obtained by sintering a magnesium-zinc base ferrite material when used for an inner wall of a dark room or an outer wall of a building. Because it can be obtained by sintering at a relatively low sintering temperature of 950 to 1,150 °C, its production cost can be reduced in comparison with a radio wave absorbent obtained by sintering a nickel-zinc base ferrite material.</p> |
