1. Scientific Foundations of Hollow Glass Microspheres one.1 Composition and Microstructure 1.one.1 Chemical Composition: Borosilicate Dominance Hollow glass microspheres (HGMs) are primarily made up of borosilicate glass, a cloth renowned for its lower thermal expansion coefficient and chemical inertness. The chemical makeup typically features silica (SiO₂, 50-ninety%), alumina (Al₂O... https://gaming-walker.com/post/139858_metallic-boride-powders-are-very-unique-but-functional-new-ceramic-materials-the.html