A high-density ceramic-aluminum alloy composite material and a method for manufacturing the same
By employing a dual-reinforcement phase system and multi-scale surface modification technology, the problems of low interfacial bonding strength and differences in thermal expansion coefficients in ceramic-reinforced aluminum matrix composites have been solved, achieving high density, high strength and toughness, and wear resistance in the material, making it suitable for aerospace, automotive manufacturing, precision instruments, and electronic packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN ESTHER NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
The preparation of ceramic-reinforced aluminum matrix composites faces problems such as poor interfacial compatibility between the reinforcing phase and the aluminum matrix, significant differences in the coefficient of thermal expansion, and uneven distribution of the reinforcing phase. These problems result in low interfacial bonding strength, poor thermal fatigue resistance and dimensional stability, making it difficult to achieve performance improvement and large-scale application.
By constructing a dual-reinforcing phase system (tungsten carbide and silicon carbide) and performing multi-scale surface modification, and by preparing modified tungsten carbide particles and coated silicon carbide particles, combined with processes such as graded ball milling, cold isostatic pressing, vacuum hot pressing sintering and hot extrusion, a gradient interface and multi-level structure are formed, achieving metallurgical bonding and matching of thermal expansion coefficients between the reinforcing phase and the aluminum matrix.
It achieves a synergistic improvement in the strength, hardness, wear resistance and density of composite materials, significantly improves the compressive strength, elastic modulus and thermal fatigue resistance of the materials, and ensures the high density and structural stability of the materials.
Smart Images
Figure CN122406076A_ABST