A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a silicon carbide ceramic with good chemical corrosion resistance, which is characterized by being prepared from the following raw materials in parts by weight: 70-80 parts of silicon carbide, 4-5 parts of vermiculite powder, 2-4 parts of dextrin, 6-8 parts of graphene, 12-15 parts of a short carbon fiber pre-dispersion, 2-3 parts of polyethylene glycol, 2-3 parts of glycerin, 4-5 parts of emery, 3-5 parts of a sintering aid, and 90-100 parts of deionized water. According to the invention, the added short carbon fiber improves the mechanical properties of silicon carbide, so that the fracture toughness of the ceramic is increased, and the strength and density of a biscuit are improved, therefore, the ceramic meets the requirements of machining; and the ceramic manufactured by using the added graphene is more heat-resistant and stronger, and the compression strength of the ceramic is greatly improved.
The invention discloses a silicon carbide ceramic with good chemical corrosion resistance, which is characterized by being prepared from the following raw materials in parts by weight: 70-80 parts of silicon carbide, 4-5 parts of vermiculite powder, 2-4 parts of dextrin, 6-8 parts of graphene, 12-15 parts of a short carbon fiber pre-dispersion, 2-3 parts of polyethylene glycol, 2-3 parts of glycerin, 4-5 parts of emery, 3-5 parts of a sintering aid, and 90-100 parts of deionized water. According to the invention, the added short carbon fiber improves the mechanical properties of silicon carbide, so that the fracture toughness of the ceramic is increased, and the strength and density of a biscuit are improved, therefore, the ceramic meets the requirements of machining; and the ceramic manufactured by using the added graphene is more heat-resistant and stronger, and the compression strength of the ceramic is greatly improved.
Surface corrosion method of pure silicon carbide ceramic
| European Patent Office | 2024