The thermal conductivity of metallic ceramics

From: JOM | Date: June 1, 1998| Author: | Copyright information

Transition metal carbides, nitrides, and borides can be called metallic ceramics because they are electronically conductive and extremely hard. Their various applications include cutting and grinding tools, thermalbarrier coatings, diffusion-resistant thin films, interconnects, and superconductivity devices. In each case, the ability of the material to resist or permit heat flow is important. Because of the high concentration of nonmetal atom vacancies in the carbides and nitrides, the carriers of heat-conduction electrons and phonons (the quanta of lattice waves)-are severely scattered, and ...

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