Glass Formation and Properties in the System Calcia-Gallia-Germania
The critical cooling rate for glass formation, Rc, was measured for four compositions in the system calcia-gallia-germania. The activation energy, E, and frequency factor, u, for the crystallization process were determined by reheating the glasses at varied constant heating rates and measuring the temperature of crystallization. Both E and v increased, with increasing germania content of the glass, whereas Rc decreased. The density, refractive index, and Abbe number were also measured; all decreased with increasing GeO2 content. These results are compared with those for calcia-gallia-silica glasses of comparable compositions.
P. W. Angel et al., "Glass Formation and Properties in the System Calcia-Gallia-Germania," Journal of the American Ceramic Society, vol. 68, no. 11, pp. 637-640, Wiley-Blackwell, Nov 1985.
The definitive version is available at http://dx.doi.org/10.1111/j.1151-2916.1985.tb16168.x
Materials Science and Engineering
Keywords and Phrases
Glass - Crystallization; Space Flight - Weightlessness; Cooling Rate; Space Experiments; Zero Gravity Processing; Glass Manufacture
International Standard Serial Number (ISSN)
Article - Journal
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