GFA (Glass-forming ability)

Glass-forming ability (GFA) refers to a material's capacity to cool from a liquid to a solid without forming a crystalline structure. Essentially, a high GFA means the material can become a glass—a non-crystalline, amorphous solid—more easily and over a wider range of cooling rates. This property is important for manufacturing durable, defect-free glasses used in screens, fibers, and other applications. Factors influencing GFA include the material’s composition, the ease with which atoms can arrange randomly, and their tendency to avoid forming ordered crystals during solidification.