1. Scientific Foundations Of Hollow Glass Microspheres one.1 Composition and Microstructure one.one.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are mostly composed of borosilicate glass, a fabric renowned for its minimal thermal enlargement coefficient and chemical inertness. The chemical makeup ordinarily consists of silica (SiO₂, 50-90%), alumin... https://padlet.com/okok0972149980/okok093-p57jo614mu84dt15/wish/yEPVZknVzz02Qb0Y