Method of producing alumina ceramics reinforced with oil fly ash

Abbas Hakeem (Inventor), Akolade Bakare (Inventor), Muhammad Ehsan (Inventor)

Research output: Patent


A method for making ceramic composites via sintering a mixture of alumina and oil fly ash. The alumina is in the form of nanoparticles and/or microparticles. The oil fly ash may be treated with an acid prior to the sintering. The composite may comprise graphite carbon derived from oil fly ash dispersed in an alumina matrix. The density, mechanical performance (e.g. Vickers hardness, fracture toughness), and thermal properties (e.g. thermal expansion, thermal conductivity) of the ceramic composites prepared by the method are also specified.
Original languageAmerican English
Patent numberUS11472991
StatePublished - 18 Oct 2022


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