Ceramic composite material mainly composed of manufacturing methods and alumina ceramic composite material mainly composed of alumina

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a ceramics composite material having high fracture toughness value and high intensity by using a binder for combining ceramic powder with carbon nanotube.SOLUTION: A method of producing a ceramics composite material includes: a step of mixing an aqueous medium with an acid for adjusting pH in a pH region where a metal atom comprising ceramics can exist in a cationic state, ceramic powder, a copolymer that contains a phenyl group and a carboxyl group, and carbon nanotube, to obtain a mixed solution where a carbon nanotube-ceramics bound substance is produced in the aqueous medium; a step of drying the mixed solution to product carbon nanotube-ceramics bound powder; and a burning step of shaping and burning the carbon nanotube-ceramics bound powder.