Earth's strongest foam material - ceramic ball metal composite foam

In this paper, we will introduce the relevant properties and application scenarios of Ceramic ball compositefoam metal(aluminum-based) ultralight Material.
First of all, the material is a special composite new foam material. By implanting hollow ceramic particles arranged in a matrix as reinforcing material, the overall modulus and strength of the material are sigNificantly higher than other foam materials made from the same matrix. The reinforcement material provides the composite foam with a higher porosity than the matrix alloy material, resulting in a significant weight reduction. And in addition to the weight reduction, the presence of uniformly distributed ceramic spheres inside the material helps the composite foam to achieve high energy absorption under compression.
Secondly, the porous structure of the ceramic spheres composite foam aluminum ultralight material can withstand large plastic deformations and it can absorb energy under compression or impact conditions generated. Its good damping ability can be applied to reduce vibration. Therefore, it can be used as a protective material against damage caused by collision or impact by sacrificing itself.
In summary, the ceramic ball composite foam aluminum material is currently the most potential application of foam metal, and has become an outstanding representative of the new structure-function integration materials and today's cutting-edge hotspots of materials development.
Material Performance

1. Lightweight
Lightweight material is one of the advantages of this kind of ceramic ball composite foam metal ultralight material. At present, this kind of material usually adopts aluminum or magnesium alloy with light density and excellent strength as the base material. The reinforcement is mainly thin-walled ceramic hollow spheres, which is conducive to further obtaining composite foam materials with lower density. The implantation of hollow ceramic spheres contributes to the support of the internal pores of the material and also enhances the overall strength of the material, providing an appreciable porosity for the composite foam material. It provides a wide range of applications in the manufacture of ship decks, automotive parts, buoyancy modules, and vehicle armor.

2. Stress-strain curves
For lightweight ceramic ball reinforced aluminum matrix composites, the main mechanical feature of the material is reflected in its compressive properties. Due to its failure process and mechanism during compression, which is completely different from that of the matrix material, its compression properties are more similar to those of porous materials. While conventional matrix materials will fail rapidly after yielding, metal composite foams will continue to deform a large amount and absorb a large amount of external energy after they start to yield. The compressive properties of the material are also affected by the size of the reinforced ceramic balls.

3. Shock absorption and energy absorption properties
Currently, the most widely used in the field of vibration damping and energy absorption are various polymer foam materials. However, the polymer foam material itself is more sensitive to temperature, chemical reagents and ultraviolet rays, which greatly limits the use of polymer foam materials in the scene. And the disadvantage of lower specific energy absorption also leads to polymer foam materials need a huge volume to absorb large load impact energy. Compared with it, composite foam aluminum has higher strength and greater rigidity. Its high stability, good marble resistance, strong regeneration, not easy to burn, light weight, is an excellent shock absorption material.

4. Application in engineering field
Ceramic ball composite foam aluminum ultralight material, also has many applications in the field of engineering. On the one hand, it is used as a structural material, used in the automotive industry, aerospace, and construction industry; on the other hand, it is used as a functional material, becoming an energy absorption and shock absorption and electromagnetic shielding components.