Borosilicate glass

This presentation is about the type of glass its properties ,uses and manufacturing process

1. ID MATERIALS AND APPLICATIONS BOROSILICATE GLASS DONE BY :- P.Angel Thanmayee B Design DR YSR ARCHITECTURE AND FINEARTS UNIVERSITY

2. BOROSILICATE GLASS is a type of glass with silica and boron trioxide as the main glass-forming constituents. BOROSILICATE GLASSES are also know for having very low coefficients of thermal expansion ,making them more resistant to thermal shock than any other common glass. And its thicknesses from 0.030 mm to 1.1 mm and sizes up 17” * 14”. Borosilicate glass is sold under various trade names,including Borosil, Duran, Pyrex, Supertek, Suprax , Simax , Bellco , Marinex (Brazil), BSA 60, BSC 51 (by NIPRO), Heatex , Endural , Schott, Refmex, Kimax , Gemstone Well, and MG (India).

3. MANUFACTURING PROCESS This special type of glass is produced from melting the following substances (with corresponding approximate composition): silica sand (59.5%), boric oxide (21.5%), potassium oxide (14.4%), zinc oxide (2.3%), and trace amounts of calcium oxide and aluminium oxide. The melting process requires an exceedingly higher temperature than traditional glass production, owing to the material's high transition temperature of up to 560°C.Once the substrate has been produced, borosilicate glass may be processed in a number of ways depending on the application for the material. This glass material may be moulded or drawn into tubes, and processed into custom shapes and sizes.

4. Some of the common uses for borosilicate glass include: • Laboratory glassware • Scientific lenses and hot mirrors • Bake ware and cookware • Thermal insulation • High-intensity lighting products • Sight glass • Aircraft exterior lenses