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A platform for research: civil engineering, architecture and urbanism
Preparation method of Al2O3/TiB2/Ni3Al ceramic cutter material
The invention discloses a preparation method of an Al2O3/TiB2/Ni3Al ceramic cutter material. The method comprises the following steps: preparing an intermetallic compound Ni3Al and a sintering aid into slurry, uniformly mixing the slurry with Al2O3, performing drying to obtain composite ceramic powder, prepressing the composite ceramic powder into a green body, and carrying out vacuum hot-pressingsintering on the green body to obtain an alumina-based ceramic cutter material; the vacuum hot-pressing sintering process is as follows: the vacuum degree in a furnace is lower than 0.01 MPa, the initial pressure before sintering is set to be 10 MPa, the pressure is increased to 25 MPa in the heat preservation stage, pressure relief is completed after heat preservation, the temperature rising speed is 50 DEG C/min, the room temperature is increased to 1450 DEG C, the heat preservation is conducted for 30 min from the room temperature, and then furnace cooling is conducted. The invention further provides a preparation method of the ceramic cutter. Compared with a metal ceramic cutter, the ceramic cutter prepared by the invention has excellent comprehensive mechanical properties, can meet the increasingly improved performance requirements of the market on the ceramic cutter, and is beneficial to further expanding the application range of the ceramic cutter.
本发明公开了一种Al2O3/TiB2/Ni3Al陶瓷刀具材料的制备方法，将金属间化合物Ni3Al、烧结助剂制备成浆料，将浆料与Al2O3混合均匀，干燥获得复合陶瓷粉体预压成坯体，将坯体真空热压烧结成氧化铝基陶瓷刀具材料；真空热压烧结过程为：炉内的真空度低于0.01MPa，烧结前的初始压力设置为10MPa，保温阶段再将压力提高至25MPa,保温完成卸压，升温速度为50℃/min从室温达到1450℃，保温30min，随后随炉冷却降温。本发明提供了所述陶瓷刀具的制备方法。本发明制备的陶瓷刀具与金属陶瓷刀具相比具有优良综合力学性能，能够满足市场对陶瓷刀具日益提高的性能要求，且有利于进一步拓展陶瓷刀具的应用范围。
Preparation method of Al2O3/TiB2/Ni3Al ceramic cutter material
The invention discloses a preparation method of an Al2O3/TiB2/Ni3Al ceramic cutter material. The method comprises the following steps: preparing an intermetallic compound Ni3Al and a sintering aid into slurry, uniformly mixing the slurry with Al2O3, performing drying to obtain composite ceramic powder, prepressing the composite ceramic powder into a green body, and carrying out vacuum hot-pressingsintering on the green body to obtain an alumina-based ceramic cutter material; the vacuum hot-pressing sintering process is as follows: the vacuum degree in a furnace is lower than 0.01 MPa, the initial pressure before sintering is set to be 10 MPa, the pressure is increased to 25 MPa in the heat preservation stage, pressure relief is completed after heat preservation, the temperature rising speed is 50 DEG C/min, the room temperature is increased to 1450 DEG C, the heat preservation is conducted for 30 min from the room temperature, and then furnace cooling is conducted. The invention further provides a preparation method of the ceramic cutter. Compared with a metal ceramic cutter, the ceramic cutter prepared by the invention has excellent comprehensive mechanical properties, can meet the increasingly improved performance requirements of the market on the ceramic cutter, and is beneficial to further expanding the application range of the ceramic cutter.
本发明公开了一种Al2O3/TiB2/Ni3Al陶瓷刀具材料的制备方法，将金属间化合物Ni3Al、烧结助剂制备成浆料，将浆料与Al2O3混合均匀，干燥获得复合陶瓷粉体预压成坯体，将坯体真空热压烧结成氧化铝基陶瓷刀具材料；真空热压烧结过程为：炉内的真空度低于0.01MPa，烧结前的初始压力设置为10MPa，保温阶段再将压力提高至25MPa,保温完成卸压，升温速度为50℃/min从室温达到1450℃，保温30min，随后随炉冷却降温。本发明提供了所述陶瓷刀具的制备方法。本发明制备的陶瓷刀具与金属陶瓷刀具相比具有优良综合力学性能，能够满足市场对陶瓷刀具日益提高的性能要求，且有利于进一步拓展陶瓷刀具的应用范围。
Preparation method of Al2O3/TiB2/Ni3Al ceramic cutter material
一种Al2O3/TiB2/Ni3Al陶瓷刀具材料的制备方法
ZHOU HOUMING (author) / ZHOU JINHU (author) / ZHANG GAOFENG (author) / ZHU JIHUI (author) / DA LIMEI (author) / CHEN ZIXIN (author) / LIU GANG (author) / YIN JIE (author)
2021-01-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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