Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-wear-resistance silicon nitride ceramic as well as preparation method and application thereof
The invention belongs to the technical field of silicon nitride ceramic preparation, and discloses high-wear-resistance silicon nitride ceramic as well as a preparation method and application thereof. The method comprises the following steps: mixing high-entropy carbonitride (Ti0. 2Ta0. 2Nb0. 2Mo0. 2W0. 2) (CnN1-n), 0.25 < = n < = 0.75, alpha-Si3N4, MgO and Re2O3, carrying out ball milling and drying to obtain mixed powder, carrying out spark plasma sintering on the mixed powder, heating to 1600-1700 DEG C, and carrying out heat preservation for 10-15 minutes to obtain the high-wear-resistance silicon nitride ceramic. According to the invention, the alpha-Si3N4 powder is introduced into the high-entropy carbonitride powder, so that the prepared silicon nitride ceramic has excellent interface bonding and high wear resistance, and can be applied to ceramic bearing balls or cutting superhard cutters.
本发明属于氮化硅陶瓷制备技术领域，公开了一种高耐磨的氮化硅陶瓷及其制备方法和应用。该方法是将高熵碳氮化物(Ti0.2Ta0.2Nb0.2Mo0.2W0.2)(CnN1‑n)，0.25≤n≤0.75、α‑Si3N4、MgO和Re2O3混合，球磨干燥后得到混合粉体，将混合粉体经放电等离子烧结，升温至1600～1700℃并保温10～15min，制得高耐磨的氮化硅陶瓷。本发明将α‑Si3N4粉体引入高熵碳氮化物粉体，制得的氮化硅陶瓷具有优异的界面结合和高耐磨性，可应用于陶瓷轴承球或切削超硬刀具。
High-wear-resistance silicon nitride ceramic as well as preparation method and application thereof
The invention belongs to the technical field of silicon nitride ceramic preparation, and discloses high-wear-resistance silicon nitride ceramic as well as a preparation method and application thereof. The method comprises the following steps: mixing high-entropy carbonitride (Ti0. 2Ta0. 2Nb0. 2Mo0. 2W0. 2) (CnN1-n), 0.25 < = n < = 0.75, alpha-Si3N4, MgO and Re2O3, carrying out ball milling and drying to obtain mixed powder, carrying out spark plasma sintering on the mixed powder, heating to 1600-1700 DEG C, and carrying out heat preservation for 10-15 minutes to obtain the high-wear-resistance silicon nitride ceramic. According to the invention, the alpha-Si3N4 powder is introduced into the high-entropy carbonitride powder, so that the prepared silicon nitride ceramic has excellent interface bonding and high wear resistance, and can be applied to ceramic bearing balls or cutting superhard cutters.
本发明属于氮化硅陶瓷制备技术领域，公开了一种高耐磨的氮化硅陶瓷及其制备方法和应用。该方法是将高熵碳氮化物(Ti0.2Ta0.2Nb0.2Mo0.2W0.2)(CnN1‑n)，0.25≤n≤0.75、α‑Si3N4、MgO和Re2O3混合，球磨干燥后得到混合粉体，将混合粉体经放电等离子烧结，升温至1600～1700℃并保温10～15min，制得高耐磨的氮化硅陶瓷。本发明将α‑Si3N4粉体引入高熵碳氮化物粉体，制得的氮化硅陶瓷具有优异的界面结合和高耐磨性，可应用于陶瓷轴承球或切削超硬刀具。
High-wear-resistance silicon nitride ceramic as well as preparation method and application thereof
一种高耐磨的氮化硅陶瓷及其制备方法和应用
GUO WEIMING (Autor:in) / LIANG ZHENQUAN (Autor:in) / YU JUNJIE (Autor:in) / LIN HUATAI (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
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