High thermal conductivity AIN-SiC composite artificial dielectric material

摘要

Dense composites of dielectric material having high thermal conductivity and adjustable dielectric properties. The dense composites are composed of homogeneous mixtures of AlN and SiC with at least one member selected from the group consisting of Y₂O₃, La₂O₃, rare earth oxides, CaO and Li₂O. These composites are ideally shaped into usable products such as traveling wave tubes and electronic accelerators for use in microwave environments.