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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon nitride ceramic containing high-entropy nitride as well as preparation method and application of silicon nitride ceramic
The invention belongs to the technical field of ceramics, and discloses silicon nitride ceramic containing high-entropy nitride and a preparation method and application thereof.The silicon nitride ceramic is prepared by the steps that high-entropy nitride powder, Si3N4 powder and a sintering aid Al2O3-Y2O3 are added into ethyl alcohol and Si3N4 balls for ball milling and mixing, and after drying, sieving is conducted to obtain mixed powder; 30-100 MPa axial pressure is applied to the mixed powder in a protective atmosphere, and the mixed powder is heated to 1600-1800 DEG C and subjected to hot pressed sintering to obtain the high-strength ceramic. The silicon nitride ceramic has high hardness, high toughness and high wear resistance, and can be applied to the field of ceramic cutters.
本发明属于陶瓷技术领域，公开了一种含高熵氮化物的氮化硅陶瓷及其制备方法和应用，所述氮化硅陶瓷是将高熵氮化物粉体、Si3N4粉体、烧结助剂Al2O3‑Y2O3加入乙醇和Si3N4球进行球磨混料，干燥后过筛，获得混合粉体；将混合粉体在保护气氛下加以30～100MPa轴向压力，升温至1600～1800℃热压烧结制得。本发明的氮化硅陶瓷具有高硬度、高韧性、高耐磨性，可应用在陶瓷刀具领域。
Silicon nitride ceramic containing high-entropy nitride as well as preparation method and application of silicon nitride ceramic
The invention belongs to the technical field of ceramics, and discloses silicon nitride ceramic containing high-entropy nitride and a preparation method and application thereof.The silicon nitride ceramic is prepared by the steps that high-entropy nitride powder, Si3N4 powder and a sintering aid Al2O3-Y2O3 are added into ethyl alcohol and Si3N4 balls for ball milling and mixing, and after drying, sieving is conducted to obtain mixed powder; 30-100 MPa axial pressure is applied to the mixed powder in a protective atmosphere, and the mixed powder is heated to 1600-1800 DEG C and subjected to hot pressed sintering to obtain the high-strength ceramic. The silicon nitride ceramic has high hardness, high toughness and high wear resistance, and can be applied to the field of ceramic cutters.
本发明属于陶瓷技术领域，公开了一种含高熵氮化物的氮化硅陶瓷及其制备方法和应用，所述氮化硅陶瓷是将高熵氮化物粉体、Si3N4粉体、烧结助剂Al2O3‑Y2O3加入乙醇和Si3N4球进行球磨混料，干燥后过筛，获得混合粉体；将混合粉体在保护气氛下加以30～100MPa轴向压力，升温至1600～1800℃热压烧结制得。本发明的氮化硅陶瓷具有高硬度、高韧性、高耐磨性，可应用在陶瓷刀具领域。
Silicon nitride ceramic containing high-entropy nitride as well as preparation method and application of silicon nitride ceramic
一种含高熵氮化物的氮化硅陶瓷及其制备方法和应用
LIU RUNPING (Autor:in) / GUO WEIMING (Autor:in) / LUO SICHUN (Autor:in) / LIN HUATAI (Autor:in)
30.05.2023
Patent
Elektronische Ressource
Chinesisch
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