Alkaline-earth-containing borosilicate glass SiO2 - 75% and B2O3 – 8 –12%, alkaline earths and alumina (Al2O3) 5% . Softer glasses which have thermal expansion in the range (4.0–5.0 × 10–6 K−1). High-borate borosilicate glass B2O3 – 15 –25% , SiO2 – 65 –70%, and smaller amounts of alkalis and Al2O3 as additional
Borosilicate - A type of glass with main glass-forming constituents silica and boron oxide. Well know for having very low coefficient of thermal expansion (~5 × 10-6 /°C at 20°C). However, there are many different borosilicate glasses made with various expansion coefficients (e.g. Pyrex and Borofloat are 32.5 while 7059 is 49).
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Borosilicate Glass Measuring Cup 1 Cup / .25 Liters / 8.45 Ounces The bakeware is made with Borosilicate which is the best glass for cooking in total safety. Only borosilicate glass can offer both resistance to thermal shock and safety BORON and TEMPERING ensure a double guarantee of resistance to thermal shock.
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Borosilicate Glass is well-known for its durability, low coefficient of expansion, low density, high softening point, high resistance to acids and thermal shock, compared to other glass formulations. The chemical composition consists primarily of silicon oxide (SiO 2 ) and boron oxide (B 2 O 3 ).
Cadamada 1000 ML Thick Glass Round Media Storage Bottles with Blue GL45 Screw Cap Pk/2 Thick Graduated Borosilicate Pyrex Glass Container 4.3 out of 5 stars 15 $15.99 $ 15 . 99 ($8.00/Item)
2mm borosilicate glass plate; frosted glass sheet; heat-resistance glass, US $ 0.5 - 1.5 / Piece, Shanghai, China, BO GLASS, BO_WL T13.Source from Shanghai BO-Glass Industrial Limited on Alibaba.com.
Glass Tube, Borosilicate Glass, Borosilicate Tube manufacturer / supplier in China, offering Clear Borosilicate 3.3 Glass Tube Diamter 2.0--315mm, Glass Dropper with Rubber Cap (HHK1025), Soda Lime Glass Lighting Tube T 5, T 8, T10 and so on.
The dielectric material compositions are 55 wt.% Al 2 O 3 and 45 wt.% lead borosilicate glass for G-C(I), 45 wt.% cordierite (2MgO · 2Al 2 O 3 · 5SiO 2) and 55 wt.% borosilicate glass for G-C(II), 35 wt.% SiO 2, and 65 wt.% borosilicate glass for G-C(III). The optimum sintering temperature for these materials is about 900 °C in air.
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1. A borosilicate glass with a low coefficient of expansion; used for heat-resistant windows, lighting and chemistry. 2. Other shapes, dimensions or thickness available. Glass Process. 3. The transmittance curves are measurements at 0°of incidence angle. 4.
Borosilicate glass begins to soften around 821 °C (1510 °F); at this temperature, the viscosity of type 7740 Pyrex is 10 7.6 poise. Borosilicate glass is less dense than ordinary glass. While more resistant to thermal shock than other types of glass, borosilicate glass can still crack or shatter when subject to rapid or uneven temperature
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