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Preparation method of graphene-reinforced silicon nitride-based ceramic
The invention discloses a preparation method of a graphene-reinforced silicon nitride-based ceramic. The preparation method adopts silicon nitride and graphene as raw materials and a mixture of aluminum oxide and yttrium oxide as a composite sintering aid. The preparation method sequentially comprises the steps of independent dispersion of raw materials, composite dispersion, ball milling, dryingand sieving, three-dimensional mixing and hot press sintering. The mechanical property of the silicon nitride ceramic material is enhanced, and the added graphene improves the friction property of theceramic, so that the silicon nitride can be used as a good wear-resistant and friction-resistant material by improving the mechanical properties.
本发明公开了一种石墨烯增强氮化硅基陶瓷制备方法，采用氮化硅和石墨烯作为原料，氧化铝和氧化钇的混合物为复合烧结助剂。依次经过原料的单独分散、复合分散、球磨、干燥过筛、三维混料、热压烧结工艺制成。本发明中的氮化硅陶瓷材料的力学性能得到增强，并且，石墨烯的加入有利于材料摩擦性能的提升，所以力学性能的提升，能使得此类氮化硅作为良好的耐磨减磨摩擦材料。
Preparation method of graphene-reinforced silicon nitride-based ceramic
The invention discloses a preparation method of a graphene-reinforced silicon nitride-based ceramic. The preparation method adopts silicon nitride and graphene as raw materials and a mixture of aluminum oxide and yttrium oxide as a composite sintering aid. The preparation method sequentially comprises the steps of independent dispersion of raw materials, composite dispersion, ball milling, dryingand sieving, three-dimensional mixing and hot press sintering. The mechanical property of the silicon nitride ceramic material is enhanced, and the added graphene improves the friction property of theceramic, so that the silicon nitride can be used as a good wear-resistant and friction-resistant material by improving the mechanical properties.
本发明公开了一种石墨烯增强氮化硅基陶瓷制备方法，采用氮化硅和石墨烯作为原料，氧化铝和氧化钇的混合物为复合烧结助剂。依次经过原料的单独分散、复合分散、球磨、干燥过筛、三维混料、热压烧结工艺制成。本发明中的氮化硅陶瓷材料的力学性能得到增强，并且，石墨烯的加入有利于材料摩擦性能的提升，所以力学性能的提升，能使得此类氮化硅作为良好的耐磨减磨摩擦材料。
Preparation method of graphene-reinforced silicon nitride-based ceramic
一种石墨烯增强氮化硅基陶瓷制备方法
CHEN WEI (author) / ZHAO ZIQIANG (author)
2020-06-05
Patent
Electronic Resource
Chinese
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