1. Scientific Foundations of Hollow Glass Microspheres 1.one Composition and Microstructure 1.1.one Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are principally made up of borosilicate glass, a cloth renowned for its very low thermal enlargement coefficient and chemical inertness. The chemical makeup usually includes silica (SiO₂, 50-ninety%), alumina ... https://gaming-walker.com/post/139863_trunnano-focuses-on-providing-a-full-range-of-high-quality-3d-printing-powders-t.html