Mechanical Properties of Metallic Closed Cellular Materials Containing Organic Material for Smart Structures

摘要

A metallic closed cellular material containing organic materials has been developed. Powder particles of polymer coated with a nickel-phosphorus alloy layer using electroless plating were pressed into pellets and sintered at high temperature. A metallic closed cellular material containing organic material was then fabricated. The compressive tests were carried out. This material has the different stress-strain curves among the specimens that have different thickness of the cell walls. And also the results of the compressive tests show that this material has high-energy absorption and Young's modulus of this material depends on the sintering condition. In addition, it seems that this material has a large ultrasonic attenuation coefficient. The obtained results emphasize that this metallic closed cellular material can be utilized as energy absorbing material and passive damping material.