Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a short fiber reinforced silicon carbide sealing ring ceramic part and a preparation method thereof. The short fiber reinforced silicon carbide sealing ring ceramic part is characterized by being prepared from the following raw materials in parts by weight: 60-80 parts of silicon carbide, 10-15 parts of short carbon fiber pre-dispersed material, 2-4 parts of sintering aids, 1-3 parts of aluminum oxide, 2-4 parts of magnesium carbide, 2-3 parts of glycerinum, 1-3 parts of polyvinyl alcohol, 2-3 parts of mica powder, 5-7 parts of potash feldspar powder, 15-25 parts of absolute ethyl alcohol and 50-70 parts of deionized water. By adding the short carbon fiber in the invention, the mechanical property of the silicon carbide is increased, the breaking tenacity of the ceramic is increased, the intensity and the density of the biscuit are increased, and the machining requirement is met; the plasticity and the caking property of the green body are reduced by adding the potash feldspar powder, the shrinkage distortion of the green body during drying process is reduced and the drying time is reduced.
The invention discloses a short fiber reinforced silicon carbide sealing ring ceramic part and a preparation method thereof. The short fiber reinforced silicon carbide sealing ring ceramic part is characterized by being prepared from the following raw materials in parts by weight: 60-80 parts of silicon carbide, 10-15 parts of short carbon fiber pre-dispersed material, 2-4 parts of sintering aids, 1-3 parts of aluminum oxide, 2-4 parts of magnesium carbide, 2-3 parts of glycerinum, 1-3 parts of polyvinyl alcohol, 2-3 parts of mica powder, 5-7 parts of potash feldspar powder, 15-25 parts of absolute ethyl alcohol and 50-70 parts of deionized water. By adding the short carbon fiber in the invention, the mechanical property of the silicon carbide is increased, the breaking tenacity of the ceramic is increased, the intensity and the density of the biscuit are increased, and the machining requirement is met; the plasticity and the caking property of the green body are reduced by adding the potash feldspar powder, the shrinkage distortion of the green body during drying process is reduced and the drying time is reduced.
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