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MIXTURE FOR CERAMIC MATERIAL BASED ON ZIRCONIUM AND ALUMINIUM OXIDES AND ZIRCONIUM NITRIDE

机译:基于锆铝氧化物和氮化锆的陶瓷材料混合物

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to ceramic material science, particularly to production of ceramic material based on heat-resistant non-oxygen and oxide compounds, characterised by high strength and crack-resistance, and can be used to make a cutting tool, in oil and gas industry (valve devices and sealing rings of pumps), in making nozzle extensions for air-sand blowers and chemical solution sprayers. The ceramic material is obtained from a mixture which contains components in the following ratio, wt %: Al2O3 10-40, ZrN 20-65, ZrO2 - the balance, at sintering temperature 1700-1800°C and nitrogen pressure during sintering of 0.10-0.12 MPa without a complex operation for isostatic moulding using high pressure.;EFFECT: obtaining ceramic material with high crack-resistance (coefficient of intensity of critical stress 7-14 MPa·m1/2 s) and bending strength 650-750 MPa.;1 tbl, 4 ex
机译:技术领域本发明涉及陶瓷材料科学,尤其涉及一种以耐热非氧和氧化物为基础的陶瓷材料的生产,该陶瓷材料具有高强度和抗裂性,可用于制造切削刀具,在石油和天然气工业(阀门装置和泵的密封环)中,为空气喷砂机和化学溶液喷雾器制造喷嘴延长件。所述陶瓷材料由包含以下重量百分比的组分的混合物获得:Al 2 O 3 10-40,ZrN 20-65,ZrO 2 -平衡,在烧结温度为1700-1800°C和烧结过程中氮气压力为0.10-0.12 MPa的情况下,无需进行复杂的高压等静压成型操作;效果:获得具有高抗裂性的陶瓷材料(临界应力强度系数7-14 MPa·m 1/2 s)和弯曲强度650-750 MPa。; 1 tbl,4 ex

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