The abrasive wear of borosilicate glass was studied. Under dry wear co
nditions, the weight loss of borosilicate glass was not found to be a
linear function of the sliding distance. The debris from the worn glas
s areas was observed to consist of glass particles, silicon carbide pa
rticles from the abrasive wheel and agglomerates of glass and silicon
carbide. This showed that the wear of borosilicate glass by silicon ca
rbide wheels is mainly abrasive but also adhesive to a lesser degree.