▎ 摘　　要

NOVELTY - High-temperature-resistant and high-toughness mixed silicon carbide powder comprises 60-70 pts. wt., preferably 65 pts. wt. silicon carbide powder, 20-30 pts. wt., preferably 25 pts. wt. cobalt powder, 4-6 pts. wt., preferably 5 pts. wt. boron nitride powder, 4-6 pts. wt., preferably 5 pts. wt. aluminum-silicon powder, and 4-6 pts. wt., preferably 5 pts. wt. graphene oxide powder. USE - High-temperature-resistant and high-toughness mixed silicon carbide powder is useful for glass pressing molds. ADVANTAGE - The mixed silicon carbide powder has high density, impact resistance and oxidation resistance, high temperature resistant and high toughness, and provides coating with excellent impact resistance, oxidation resistance and high temperature heat stability, strong bonding force of the coating and the substrate, and excellent toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of high temperature resistant and high toughness mixed silicon carbide powder.