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Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.
Lampworking can be done with many types of glass, but the most common are soda-lime glass and lead glass, both called "soft glass", and borosilicate glass, often called "hard glass". Leaded glass tubing was commonly used in the manufacture of neon signs, and many US lampworkers used it in making blown work.
Cranberry glass bowl Photochromic eyeglass lens. The coloring is caused by silver nanoparticles. Selenium, like manganese, can be used in small concentrations to decolorize glass, or in higher concentrations to impart a reddish color, caused by selenium nanoparticles dispersed in glass. It is a very important agent to make pink and red glass.
Get tips and tricks on the best kitchen torches to tackle recipes from mac and cheese to steak! The post The Best Kitchen Torches of 2021 appeared first on Taste of Home.
Flame polishing, also known as fire polishing, is a method of polishing a material, usually glass or thermoplastics, by exposing it to a flame or heat. [1] When the surface of the material briefly melts, surface tension smooths the surface. Operator skill is critical with this method.
While blowing air is effective, blowing oxygen produces higher temperatures, and it is also practical to invert the roles of the gasses and blow fuel through air. Contemporary blowtorches and oxy-fuel welding and cutting torches can be considered to be modern developments of the blowpipe. Kit for blowpipe analysis Carl Osterland, Freiberg, c. 1870
Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware are made of borosilicate glass. According to the National Institute of Standards and Technology , borosilicate Pyrex is composed of (as percentage of weight): 4.0% boron , 54.0% oxygen , 2.8% sodium , 1.1% aluminum , 37.7% silicon ...
Fire-King Mixing Bowls Turquoise Blue Swedish Modern Bowl Set Ivory Glassware Jadeite Ball Jug Examples of Jadeite and Rainbow. Fire-King is an Anchor Hocking brand of glassware similar to Pyrex. It was formerly made of low expansion borosilicate glass and ideal for oven use.
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