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Extending the glass formation of alkali tellurites.
- Source :
- Physics & Chemistry of Glasses: European Journal of Glass Science & Technology Part B; Feb2024, Vol. 65 Issue 1, p10-19, 10p
- Publication Year :
- 2024
-
Abstract
- The physical properties of low alkali content tellurite glasses of composition xM<subscript>2</subscript>O.(1−x)TeO<subscript>2</subscript> (0≤x≤0·35) have been previously collected in this laboratory. The twin-roller rapid quenching technique (cooling rate>10<superscript>5</superscript>°C/s), used within a nitrogen environment, successfully and significantly extended the glass-forming range in the lithium and sodium tellurite systems. The upper range for modification has been extended from x=0·35 to 0·80 and up to x=0·625 for the lithium and sodium systems, respectively. In the K, Rb and Cs tellurites, the glass forming ranges were not increased. Glass transition temperature (T<subscript>g</subscript>), crystallisation temperature (T<subscript>x</subscript>), density, molar volume, packing fraction, ionic conductivity and Raman spectra were obtained for these glasses. These results showed structural changes as a function of composition and carbonate retention in the glasses as the amount of alkali modifier increased above x=0·5. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17533562
- Volume :
- 65
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Physics & Chemistry of Glasses: European Journal of Glass Science & Technology Part B
- Publication Type :
- Academic Journal
- Accession number :
- 175708804
- Full Text :
- https://doi.org/10.13036/17533562.65.1.07