Max-Plank Society  December 2, 2022 The combustion of iron powders seems very promising for stable and high-density energy storage technology. To better understand their in-process morphological and microstructural evolution an international team of researchers (Germany, the Netherlands) investigated two iron powder combustion pathways, one in air and one with the assistance of a propane pilot flame. Both processes resulted in spherical hollow particles composed of a complex microstructure of wüstite, magnetite and/or hematite. They observed nanoparticles on the micro-sized combustion products which indicated partial evaporation. According to the researchers the associated gas production inside the liquid droplet could be the […]