Physical and mechanical properties of a new borosilicate glass

International audienceA new low-alkali borosilicate glass was synthesized and its properties were measured and compared to the properties of a standard float glass. This paper provides a comparison between the properties of the new glass and those measured in the same conditions for commercial float glass, taking into account both the compactness of the glass network and the number of non-bridging oxygen atoms. The mechanical behaviour of the new glass was analyzed by an indentation technique and by scratch experiments. The rearrangement of the glass under a concentrated applied load as a function, of both the bond strength and the. compactness of the vitreous network is discussed