Author： Bobkova N.
Publisher： Springer Publishing Company
ISSN： 0361-7610
Source： Glass and Ceramics, Vol.70, Iss.1-2, 2013-05, pp. : 41-42
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Abstract
Data on the synthesis of lead-free glass for assorted glassware are presented. Glasses in the system SiO2-SnO2-BaO-CaO-Na2O-K2O with 2 - 10% SnO2 are studied. The effect of introducing BaO and SnO2 together on the crystallizability, density, CLTE, index of refraction and microhardness of the glasses is studied. Compositions with 6 - 8% BaO and SnO2 4 - 6% are recommended for high-quality assorted glasses. The refractive index of the glasses obtained is in the range 1.540 - 1.550, the microhardness is 3700 - 4900 MPa and the CLTE is (95 - 98) × 10 - 7 K- 1.
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