用基于碳化硅的耐热陶瓷材料成型复杂型材产品的方法

Steklo i Keramika Pub Date : 2023-07-01 DOI:10.14489/glc.2023.07.pp.017-024

M. Markov, A. N. Belyakov, D. A. Dyuskina, A. G. Chekuryaev, A. Bykova, S. Perevislov, A. Kashtanov

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引用次数: 0

摘要

研究人员采用两种方法（烧结前聚合坯料的机械加工和加压热滑成型）获得了基于反应烧结碳化硅的复杂形状机械工程产品。获得的碳化硅陶瓷材料的特点是密度低，约为 3.04...3.07 g/cm3，孔隙率为 1%，抗弯强度为 320...360 兆帕。用碳化硼改性的碳化硅材料的密度为 2.72 克/立方厘米，孔隙率约为 1%，弯曲强度为 280 兆帕。

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METHODS OF FORMING COMPLEX PROFILE PRODUCTS FROM HEAT-RESISTANT CERAMIC MATERIALS BASED ON SILICON CARBIDE

The possibility of obtaining complex-shaped mechanical engineering products based on reaction-sintered silicon carbide using two methods - mechanical processing of polymerized blanks before sintering and hot slip molding under pressure, has been studied. The obtained silicon carbide ceramic materials are characterized by a low density of about 3.04…3.07 g/cm3, a porosity of ? 1 % and a bending strength of 320…360 MPa. Materials based on silicon carbide modified with boron carbide have a density of 2.72 g/cm3, a porosity of about 1 % and a bending strength of 280 MPa.

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Steklo i Keramika

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