Abstract: A non-metallic honeycomb structure wherein the thermal conductivity of the structure is increased by incorporating high thermal conductivity pitch-based carbon fibers into the non-metallic resin matrix. In addition to increasing thermal conductivity, the pitch-based carbon fibers are utilized to provide controlled directional heat conductance through the honeycomb structure.

Abstract: Thermally conductive non-metallic honeycomb structures are provided as well as a novel co-corrugation process for their production. The thermal conductivity of the non-metallic honeycomb structures is increased by incorporating unidirectional thermally conductive fibers in the corrugated laminate sheets used to form the honeycomb. Thermally conductive fibers are integrated in the laminate sheets as a unidirectional fiber prepreg which minimizes the number of broken fibers and allows controlled directional heat conductance through the honeycomb structure.

Abstract: A non-metallic honeycomb structure wherein the thermal conductivity of the structure is increased by incorporating high thermal conductivity pitch-based carbon fibers into the non-metallic resin matrix. In addition to increasing thermal conductivity, the pitch-based carbon fibers are utilized to provide controlled directional heat conductance through the honeycomb structure. In one preferred embodiment, the pitch-based fibers are oriented to extend at an angle of plus or minus 55 to 60 degrees relative to the lengthwise direction of the honeycomb structure to provide optimum performance characteristics at a reduced cost.

Abstract: A non-metallic honeycomb structure wherein the thermal conductivity of the structure is increased by incorporating high thermal conductivity pitch-based carbon fibers into the non-metallic resin matrix. In addition to increasing thermal conductivity, the pitch-based carbon fibers are utilized to provide controlled directional heat conductance through the honeycomb structure. In a preferred exemplary embodiment, the cell walls are formed from a plurality of non-metallic unidirectional fabric layers, at least one of which consists essentially of unidirectionally oriented high thermal conductivity fibers.