Society of Glass Technology · [Sheffield] · leaf 89
slightlysmaller expansion, the values being :— 15-500°500-600° 406 X 1081203 X 10-8 600-1000°15-1000° 195 x 10401 X 10 30 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. As with the cone 9 samples, increase of porosity resulted in adecrease in expansion, although after the porosity had become about50… … The Behaviour of Kaolin when Heated and the Influenceof Added Silica. Reasons have been given * for supposing that the kaolin molecule(Al203,2Si02,2H20) decomposes at temperatures just above 500°into alumina, silica, and water, and that at temperatures above1200° the alumina recombines with half of…
Glass
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