Research on structure and performance of spherical pore aluminum foam prepared by placeholder method
Calcium chloride,stearic acid,sodium thiosulfate and urea were used as pore forming agents,and the pore size of 1~2 mm and porosity of 60%,70%and 80%spherical pore aluminum foam were prepared by the placeholder method.The porous structure(pore area,pore roundness),com-pression performance and energy absorption effect were compared and analyzed.The results showed that calcium chloride-aluminum foam exhibited better compression performance and energy absorption effect due to its better pore structure.