Borosilicatederived

Borosilicatederived is a nonstandard, umbrella term used in some materials science writings to designate materials that are derived from borosilicate glass through subsequent processing that alters the original glass network. The concept covers a range of products, including glass-ceramics produced by controlled crystallization of borosilicate glasses and composite or treated materials where the borosilicate phase serves as a starting point for further transformation.

Common processing routes include heat treatment to induce crystallization (devitrification) to form glass-ceramics, chemical modification such as leaching or ion exchange, and incorporation of secondary phases to create borosilicate-derived composites. These routes aim to tune properties such as thermal expansion, toughness, and chemical durability while leveraging the inherent heat resistance of borosilicate networks.

Properties are highly dependent on the derived phase assemblage and processing conditions. In general, borosilicate-derived materials retain some advantages of borosilicate glass, including low thermal expansion and good chemical resistance, while offering improved mechanical strength, tailored thermal behavior, or added functionalities from crystalline phases or inclusions.

The term borosilicatederived is not widely standardized. When encountered, it is advisable to consult the source for the precise definition of what constitutes "derived" in that context and which processing steps were used to create the material.