A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alumina composite ceramic material based on amplitude modulation decomposition and preparation method thereof
The invention discloses an aluminum oxide composite ceramic material based on amplitude modulation decomposition and a preparation method thereof, and belongs to the field of preparation of aluminum oxide ceramic materials. According to the method, oxide powder and graphite powder are mixed and then subjected to pressureless sintering, and a large amount of compound carbide materials without amplitude modulation decomposition are rapidly prepared; the compound carbide material, aluminum oxide and a small amount of sintering aid are fully mixed and then subjected to rapid hot pressing sintering, and the compact compound carbide reinforced aluminum oxide-based ceramic material is prepared; the ceramic material is subjected to aging treatment at a specific temperature for a specific time, and an amplitude modulation decomposition phenomenon occurs in the material, so that the hardness and the toughness of the material are synergistically improved, and the high-strength and high-toughness aluminum oxide composite ceramic material is obtained. The preparation method has the characteristics of being simple and easy to implement, low in cost and wide in application range, the prepared powder has an amplitude modulation decomposition phenomenon after aging treatment, and the hardness and toughness of the powder are remarkably improved.
本发明公开了一种基于调幅分解的氧化铝复合陶瓷材料及其制备方法，属于氧化铝陶瓷材料制备领域。本发明通过将氧化物粉末和石墨粉混合后进行无压烧结快速制备出大量的未发生调幅分解的复式碳化物材料；将复式碳化物材料与氧化铝和少量烧结助剂充分混合后快速热压烧结，制得到致密的复式碳化物增强氧化铝基陶瓷材料；再将该种陶瓷材料在特定的温度和时间下进行时效处理，材料内部出现调幅分解现象，使其硬度和韧性协同提升，得到高强度和高韧性的氧化铝复合陶瓷材料。本发明的制备方法具有简单易行、成本低且适用范围广的特点，所制备出的粉料经过时效处理后出现调幅分解现象，其硬度和韧性提升显著。
Alumina composite ceramic material based on amplitude modulation decomposition and preparation method thereof
The invention discloses an aluminum oxide composite ceramic material based on amplitude modulation decomposition and a preparation method thereof, and belongs to the field of preparation of aluminum oxide ceramic materials. According to the method, oxide powder and graphite powder are mixed and then subjected to pressureless sintering, and a large amount of compound carbide materials without amplitude modulation decomposition are rapidly prepared; the compound carbide material, aluminum oxide and a small amount of sintering aid are fully mixed and then subjected to rapid hot pressing sintering, and the compact compound carbide reinforced aluminum oxide-based ceramic material is prepared; the ceramic material is subjected to aging treatment at a specific temperature for a specific time, and an amplitude modulation decomposition phenomenon occurs in the material, so that the hardness and the toughness of the material are synergistically improved, and the high-strength and high-toughness aluminum oxide composite ceramic material is obtained. The preparation method has the characteristics of being simple and easy to implement, low in cost and wide in application range, the prepared powder has an amplitude modulation decomposition phenomenon after aging treatment, and the hardness and toughness of the powder are remarkably improved.
本发明公开了一种基于调幅分解的氧化铝复合陶瓷材料及其制备方法，属于氧化铝陶瓷材料制备领域。本发明通过将氧化物粉末和石墨粉混合后进行无压烧结快速制备出大量的未发生调幅分解的复式碳化物材料；将复式碳化物材料与氧化铝和少量烧结助剂充分混合后快速热压烧结，制得到致密的复式碳化物增强氧化铝基陶瓷材料；再将该种陶瓷材料在特定的温度和时间下进行时效处理，材料内部出现调幅分解现象，使其硬度和韧性协同提升，得到高强度和高韧性的氧化铝复合陶瓷材料。本发明的制备方法具有简单易行、成本低且适用范围广的特点，所制备出的粉料经过时效处理后出现调幅分解现象，其硬度和韧性提升显著。
Alumina composite ceramic material based on amplitude modulation decomposition and preparation method thereof
一种基于调幅分解的氧化铝复合陶瓷材料及其制备方法
ZHANG WEIBIN (author) / ZHANG ZHIXUAN (author) / WANG WEILI (author) / LI NA (author) / SU KAIYUE (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Alumina-based ceramic composite material and preparation method thereof
| European Patent Office | 2024
Nanoscale alumina ceramic powder, composite ceramic material and preparation method thereof
| European Patent Office | 2021
Alumina and ceramic composite material and preparation method thereof
| European Patent Office | 2021
Zirconia/alumina ceramic composite material and preparation method thereof
| European Patent Office | 2021
Alumina-based composite ceramic and preparation method thereof
| European Patent Office | 2021