| abstract |
The present invention provides an alumina-based thermally conductive oxide which is excellent not only in thermal conductivity but also in chemical resistance, water resistance, and electrical insulation, and which is good in kneading (mixability) with resins and capable of producing resins excellent in moldability Compositions and other materials and articles. The present invention is an alumina-based thermally conductive oxide obtained by calcining a raw material mixture containing an aluminum raw material. The aluminum raw material is at least one selected from the group consisting of boehmite, aluminum hydroxide, and aluminum oxide, and the raw material mixture also contains oxide raw materials such as boric acid compounds and tungsten compounds. In the raw material mixture, relative to 100 parts by mass of the aluminum raw material , the content of the boric acid compound is 0.1 to 5 parts by mass, and the content of the oxide raw material is 0.1 to 20 parts by mass. |