Hollow Glass Microspheres: Lightweight Inorganic Fillers for Advanced Material Systems hollow glass spheres
1. Material Composition and Architectural Style 1.1 Glass Chemistry and Spherical Design (Hollow glass microspheres) Hollow glass microspheres (HGMs) are microscopic, spherical fragments made up of alkali borosilicate or soda-lime glass, usually ranging from 10 to 300 micrometers in diameter, with wall thicknesses between 0.5 and 2 micrometers. Their defining feature is a closed-cell, hollow…