Development of Lightweight Magnesium/Glass Micro Balloon Syntactic Foams Using Microwave Approach with Superior Thermal and Mechanical Properties

Magnesium matrix syntactic foams (MgMSFs) are emerging lightweight materials with unique capabilities to exhibit remarkable thermal, acoustic, and mechanical properties. In the current study, glass micro balloon (GMB)-reinforced Mg were synthesized via powder metallurgy technique using hybrid microwave sintering. The processing employed in study yielded MgMSFs refined grain sizes, no secondary phases, reasonably uniform distributions of hollow reinforcement particles. developed exhibited densities 8%, 16%, 26% lower than that pure Mg. coefficient thermal expansion reduced (up 20%) while ignition resistance improved 20 °C) amount GMB magnesium matrix. also a progressive increase hardness GMB. Although showed decrease yield strength addition particles, ultimate compression strength, fracture strain, energy absorption increased noticeably. best at 321 MPa, which was ~26% higher Mg, displayed by Mg-5GMB composite, Mg-20GMB composite strain capability, ~39 65%, respectively, when compared specific all composites remained superior monolithic magnesium. Particular efforts made present interrelate processing, microstructural features, properties MgMSFs.