B4C/SiC/Al2O3 particle reinforced aluminum sandwich foam and ramor 500 armor steel to be combined and investigation of the ballistic performance

Abstract

In this study, the ballistic performances of particle-free Al sandwich foams (ASK) containing SiC, B4C and Al2O3 prepared by powder metallurgy were investigated. For this purpose, the mixture powders were subjected to extrusion milling after cold pressing and sandwich foams of 50x50x20 mm(2) were produced at 690 degrees C foaming temperature. Produced sandwich foams, 50x50x7 mm(2) dimensions of ramor 500 armor steel with silicon resin was glued and the armor samples were prepared for ballistic testing. In the study, it was determined that the particle diameter which is broken from the armor steel is less in the designs where the sandwich foams are leading. In addition, ballistic collisions resulted in localized condensation and petal damage in the sandwich foams.