Abstract: A conformable paste comprising porous agglomerates of carbon black dispersed in a paste-forming vehicle is disclosed. The paste is useful as an interface material for improving the thermal contact between two proximate solid surfaces, such as the surfaces of a heat source and a heat sink. Upon compression between the two solid surfaces, the paste forms a material that enhances the thermal contact between said surfaces. This invention also discloses a conformable interface material which, upon compression between two proximate solid surfaces, forms a material that enhances the thermal contact between said surfaces. This interface material comprises (i) a sheet and (ii) a conformable, spreadable and thermally conductive paste on each of the two opposite sides of the sheet, said paste comprising porous agglomerates of carbon black dispersed in a paste-forming vehicle. In addition, a method of providing a thermal contact between two solid surfaces is disclosed.

Abstract: A thermally conductive paste including porous agglomerates of carbon particles dispersed in a paste-forming vehicle is disclosed. The paste is useful as a thermally conductive interface material between a heat or cold source and an object. The paste is particularly useful as a thermally conductive interface material between a heat source and a heat sink. Apparatus and a method of removing heat from a heat source utilizing thermally conductive pastes of the present invention are also disclosed.