A preparation method of an aluminum-based porous composite material based on an equal modulus aluminum alloy framework collaborative bearing
By introducing an equal-modulus aluminum alloy skeleton and hollow microspheres into an aluminum matrix, a continuous load-bearing network and dispersed crushing energy absorption units are formed, which solves the problem of insufficient load-bearing capacity and stable collapse capacity of porous aluminum matrix materials under compressive load, and realizes the stable synergistic effect and efficient energy absorption of the materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing porous aluminum-based materials have insufficient load-bearing capacity and stable collapse capacity under compressive loads, making it difficult to achieve the synergistic effect of continuous load-bearing paths and multi-scale porous structures. This results in a sharp drop in stress and plateau fluctuations in the stress-strain curve, limiting their reliability in protective and energy-absorbing applications.
By introducing a continuous aluminum alloy skeleton with a similar elastic modulus into the aluminum matrix, and combining hollow microsphere filling with liquid metal pressure infiltration process, a continuous load-bearing network and dispersed crushing energy absorption units are formed, realizing the synergistic effect of the aluminum alloy skeleton, hollow microspheres and aluminum matrix, and constructing a stable and continuous multiphase synergistic structure.
It improves the material's load-bearing capacity and stability, reduces stress drop and plateau fluctuations in the stress-strain curve, enhances the material's stability and energy absorption performance during compression, and adapts to engineering needs for different applications.
Smart Images
Figure CN122400538A_ABST