Electromagnetic wave absorbers of silicon carbide fibers
    5.
    发明授权
    Electromagnetic wave absorbers of silicon carbide fibers 失效
    碳化硅纤维电磁波吸收体

    公开(公告)号:US4726980A

    公开(公告)日:1988-02-23

    申请号:US22945

    申请日:1987-03-06

    IPC分类号: H01Q17/00 B32B7/00

    摘要: An electromagnetic wave absorber comprising a surface layer made of a composite of fibers having an electrical specific resistance of more than 10.sup.4 .OMEGA.cm and a resin, and a wave absorbing layer made of a composite containing silicon carbide fibers having an electrical specific resistance of from 10.sup.-2 to 10.sup.4 .OMEGA.cm. The composite used in the surface layer may be prepared, for example, by impregnating the resin in between the fibers after they have been treated to be a woven cloth, mat or felt or unidirectionally arranged fibers. If a wave absorbing layer is to be made of a composite containing the silicon carbide fibers and a resin, then the composite may be prepared in the same way as above.

    摘要翻译: 一种电磁波吸收体,包括由电阻率大于104欧母马克的纤维的复合材料制成的表面层和树脂,以及由含有电阻率为10的碳化硅纤维的复合材料制成的波浪吸收层 -2至104欧米加厘米。 在表层中使用的复合材料可以例如通过将树脂浸渍在纤维之后,将它们处理成编织布,毡或毛毡或单向布置的纤维之后来制备。 如果波浪吸收层由含有碳化硅纤维和树脂的复合材料制成,则可以以与上述相同的方式制备复合材料。