一种基于调幅分解的氧化铝复合陶瓷材料及其制备方法
By introducing zirconium oxide, hafnium oxide, and titanium oxide into alumina composites and using a modulated decomposition process with carbon powder, a nanoscale layered structure is formed, solving the problem of balancing hardness and toughness in alumina composites. This results in a significant improvement in material properties and has broad prospects for industrial applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Filing Date
- 2024-05-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing alumina composite materials cannot simultaneously achieve high hardness and high toughness. Current technologies often sacrifice one aspect of performance to compensate for other properties during the reinforcement process.
By mixing zirconium oxide or hafnium oxide, titanium oxide and carbon powder and sintering them under a protective atmosphere to form complex carbides, then mixing them with alumina and performing rapid hot pressing sintering, followed by aging treatment at specific temperatures and times, amplitude modulation decomposition is initiated to form a nanoscale layered structure, thereby improving the hardness and toughness of the material.
Alumina composite ceramic materials with excellent comprehensive performance were prepared, with significantly improved hardness and toughness. The process is simple and easy to implement, with a wide range of applications and high potential for industrial application.
Smart Images
Figure CN118619656B_ABST