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A platform for research: civil engineering, architecture and urbanism
Green and environment-friendly ceramic cutter material and preparation method thereof
The invention provides a green and environment-friendly ceramic cutter material and a preparation method thereof. The preparation method comprises the following steps of 1, taking 87-89wt% of silicon nitride, 2-4wt% of nano lignin, 9-11wt% of magnesium oxide and 9-11wt% of yttrium oxide, uniformly mixing, and drying to obtain mixed powder, wherein the nano lignin is extracted from poplar, 2, mixing the mixed powder with absolute ethyl alcohol, and grinding to obtain uniformly mixed slurry, 3, drying the mixed slurry obtained in the step 2 to obtain uniformly mixed composite powder, and 4, loading the composite powder obtained in the step 35 into a mold and conducting hot pressing sintering under the protection of the nitrogen atmosphere, wherein the sintering temperature ranges from 1700 DEG C to 1800 DEG C, the pressure ranges from 30 MPa to 40 MPa, the heat preservation and pressure maintaining time ranges from 30 min to 60 min, heat preservation is conducted for 30 min to 40 min when the temperature is increased to 800 DEG C to 850 DEG C, and the green and environment-friendly ceramic cutter material is obtained. The used raw materials are green, the preparation method is simple, the prepared cutter can achieve low friction coefficient and wear rate without using a cutting fluid, and the fracture toughness is improved.
本发明提供一种绿色环保的陶瓷刀具材料及其制备方法，包括以下过程，步骤1，取质量分数为87～89wt％的氮化硅、2～4wt％的纳米木质素、总质量分数为9～11wt％的氧化镁和氧化钇，混合均匀后干燥得到混合粉末；所述纳米木质素从杨木中提取；步骤2，将混合粉末与无水乙醇混合后，研磨后得到混匀的混合浆料；步骤3，干燥步骤2的混合浆料，得到混合均匀的复合粉料；步骤4，将步骤35的复合粉料装入模具中，并在氮气氛围的保护下进行热压烧结，烧结温度为1700～1800℃，压力为30～40MPa，保温保压时间为30～60min，其中，在升温至800～850℃时，保温30～40min，得到绿色环保的陶瓷刀具材料。所用原料绿色，制备方法简单，制备成的刀具无需使用切削液即可达到较低摩擦系数和磨损率，提升断裂韧性。
Green and environment-friendly ceramic cutter material and preparation method thereof
The invention provides a green and environment-friendly ceramic cutter material and a preparation method thereof. The preparation method comprises the following steps of 1, taking 87-89wt% of silicon nitride, 2-4wt% of nano lignin, 9-11wt% of magnesium oxide and 9-11wt% of yttrium oxide, uniformly mixing, and drying to obtain mixed powder, wherein the nano lignin is extracted from poplar, 2, mixing the mixed powder with absolute ethyl alcohol, and grinding to obtain uniformly mixed slurry, 3, drying the mixed slurry obtained in the step 2 to obtain uniformly mixed composite powder, and 4, loading the composite powder obtained in the step 35 into a mold and conducting hot pressing sintering under the protection of the nitrogen atmosphere, wherein the sintering temperature ranges from 1700 DEG C to 1800 DEG C, the pressure ranges from 30 MPa to 40 MPa, the heat preservation and pressure maintaining time ranges from 30 min to 60 min, heat preservation is conducted for 30 min to 40 min when the temperature is increased to 800 DEG C to 850 DEG C, and the green and environment-friendly ceramic cutter material is obtained. The used raw materials are green, the preparation method is simple, the prepared cutter can achieve low friction coefficient and wear rate without using a cutting fluid, and the fracture toughness is improved.
本发明提供一种绿色环保的陶瓷刀具材料及其制备方法，包括以下过程，步骤1，取质量分数为87～89wt％的氮化硅、2～4wt％的纳米木质素、总质量分数为9～11wt％的氧化镁和氧化钇，混合均匀后干燥得到混合粉末；所述纳米木质素从杨木中提取；步骤2，将混合粉末与无水乙醇混合后，研磨后得到混匀的混合浆料；步骤3，干燥步骤2的混合浆料，得到混合均匀的复合粉料；步骤4，将步骤35的复合粉料装入模具中，并在氮气氛围的保护下进行热压烧结，烧结温度为1700～1800℃，压力为30～40MPa，保温保压时间为30～60min，其中，在升温至800～850℃时，保温30～40min，得到绿色环保的陶瓷刀具材料。所用原料绿色，制备方法简单，制备成的刀具无需使用切削液即可达到较低摩擦系数和磨损率，提升断裂韧性。
Green and environment-friendly ceramic cutter material and preparation method thereof
一种绿色环保的陶瓷刀具材料及其制备方法
CHEN WEI (author) / ZHAO ZIQIANG (author) / JIAO XIAOYU (author) / LIU XINGYU (author) / CHENG KUN (author) / ZHU CHAOLONG (author) / WU CHENJING (author) / LIU XUANTONG (author)
2022-01-07
Patent
Electronic Resource
Chinese
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