▎ 摘　　要

NOVELTY - The preparation of the high-temperature oxidation-resistant carbon fiber toughened zirconia ceramic material involves: taking graphene oxide modified carbon fibers coated with alumina as a base material, zirconium chloride as a zirconium source precursor, carbon dioxide and hydrogen as reaction gas, and argon used as diluent gas; depositing a zirconium oxide layer on the surface of the base material using a chemical vapor deposition method to form modified carbon fibers; mixing zirconium oxide powder with the particle size of 45-75 microm, zirconium tungstate powder, modified carbon fiber and sintering aid; adding the mixture into a ball mill, and adding phenolic resin, graphite powder and deionized water for ball milling; vacuum treating the slurry, dry pressing molding, and curing for 6-12 hours at 50-90 degrees Celsius; and heating at 1400-1500 degrees Celsius in a vacuum furnace and an inert atmosphere at a rate of 5-10 degrees Celsius/minute, carrying out heat preservation sintering for 2-6 hours, and cooling. USE - Preparation method of high temperature oxidation resistant carbon fiber toughened zirconia ceramic material used as heat insulation layer of rockets, a cylinder sleeve and a piston top of an internal combustion engine, various nozzles, ceramic valves, continuous casting nozzles and crucibles in smelting. ADVANTAGE - The method enables to prepare carbon fiber toughened zirconia ceramic material with high temperature oxidation resistance and improved toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the high temperature oxidation resistant carbon fibre toughened zirconia ceramic material.