Properties and Structure of Glasses in the Systems M2O-In2O3-GeO2 (M = Li,Na,K) |
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| Authors: | M J FAIRWEATHER M K MURTHY |
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| Affiliation: | Department of Materials Chemistry, Ontario Research Foundation, Sheridan Park, Ontario, Canada |
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| Abstract: | The glass-forming regions in the ternary systems M2O-In2O3-GeO2 (M = Li,Na,K) were determined. The region in each of the three ternaries is less extensive than in either of the analogous systems M2O-Al2O3-GeO2 and M2O-Ga2O3-GeO2; this behavior reflects the restrictive coordination requirements of the larger In ion. The In2O3-containing glasses exhibit higher densities and refractive indices than the corresponding Al2O3 and Ga2O3-containing glasses. Refractive index and density maxima are observed along lines of constant In2O3 in each of the three alkali indogermanate systems. |
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