Incombustible honeycomb radio absorptive material and radio absorber using the same

摘要

An incombustible honeycomb radio absorptive material(1) is disclosed, forming a honeycomb structure that is an aggregate of many cells, wherein (i) the honeycomb structure(1) contains a hydrated inorganic compound and an electrically conductive material, or (ii) the honeycomb structure(1) contains a hydrated inorganic compound and has an electrically conductive layer(4) made of an electrically conductive material being formed on the surface of the structure(1). A radio absorber(50) is also disclosed, wherein a large number of the incombustible honeycomb radio absorptive materials(1) are disposed on a shield panel(51) or a ferrite tile(52) covering he shield panel(51) is provided. The incombustible honeycomb radio absorptive material(1) and the radio absorber(50) using it according to the invention are suitably used for an anechoic chamber and are excellent in the fire resistance and the radio absorption effect.