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A platform for research: civil engineering, architecture and urbanism
Ceramic containing cBN superhard particles, and preparation method and application thereof
The invention belongs to the technical field of ceramics, and discloses a ceramic containing cBN superhard particles, and a preparation method and an application thereof. The preparation method comprises the following steps: adding cBN particles, Si3N4 powder and a sintering aid Al2O3-Y2O3 into ethanol and Si3N4 balls, carrying out ball-milling mixing, drying the mixed slurry, and sieving to obtain a mixed powder; pressing the mixed powder into a green body, applying an axial pressure of 30-100 Mpa to the green body in a protective atmosphere, heating to 1500-1800 DEG C, keeping the temperature, and performing spark plasma sintering to obtain the product. The ceramic provided by the invention has high hardness, high wear resistance, good toughness, good cutting performance and long cuttinglife, and can be applied to the field of ceramic cutters.
本发明属于陶瓷技术领域，公开了一种含cBN超硬颗粒的陶瓷及其制备方法和应用，所述陶瓷是将cBN颗粒、SiN粉体、烧结助剂AlO‑YO加入乙醇和SiN球进行球磨混料，将混好的浆料干燥后过筛，获得混合粉体；将混合粉体压制成胚体，在保护气氛下，对胚体加以30～100Mpa轴向压力，加热到1500～1800℃并保温，经放电等离子烧结制得。本发明的陶瓷具有高硬度、高耐磨性和较好的韧性，良好的切削性能和切削寿命，可应用到陶瓷刀具领域中。
Ceramic containing cBN superhard particles, and preparation method and application thereof
The invention belongs to the technical field of ceramics, and discloses a ceramic containing cBN superhard particles, and a preparation method and an application thereof. The preparation method comprises the following steps: adding cBN particles, Si3N4 powder and a sintering aid Al2O3-Y2O3 into ethanol and Si3N4 balls, carrying out ball-milling mixing, drying the mixed slurry, and sieving to obtain a mixed powder; pressing the mixed powder into a green body, applying an axial pressure of 30-100 Mpa to the green body in a protective atmosphere, heating to 1500-1800 DEG C, keeping the temperature, and performing spark plasma sintering to obtain the product. The ceramic provided by the invention has high hardness, high wear resistance, good toughness, good cutting performance and long cuttinglife, and can be applied to the field of ceramic cutters.
本发明属于陶瓷技术领域，公开了一种含cBN超硬颗粒的陶瓷及其制备方法和应用，所述陶瓷是将cBN颗粒、SiN粉体、烧结助剂AlO‑YO加入乙醇和SiN球进行球磨混料，将混好的浆料干燥后过筛，获得混合粉体；将混合粉体压制成胚体，在保护气氛下，对胚体加以30～100Mpa轴向压力，加热到1500～1800℃并保温，经放电等离子烧结制得。本发明的陶瓷具有高硬度、高耐磨性和较好的韧性，良好的切削性能和切削寿命，可应用到陶瓷刀具领域中。
Ceramic containing cBN superhard particles, and preparation method and application thereof
一种含cBN超硬颗粒的陶瓷及其制备方法和应用
GUO WEIMING (author) / LUO SICHUN (author) / ZHANG ZHAN (author) / TAN DAWANG (author) / LIN HUATAI (author)
2020-04-21
Patent
Electronic Resource
Chinese
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