1. Chromium oxide additions in lithium disilicate glass crystallization.
- Author
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Rincón-Mora, B., Jordan, M.M., and Rincón, J. Ma
- Subjects
- *
CHROMIUM oxide , *LITHIUM silicates , *METALLIC glasses , *CRYSTALLIZATION , *X-ray diffraction , *TRANSMISSION electron microscopy - Abstract
The effect of chromium oxide additions (0.05–1.00 mol% interval) on the crystallization of an original 26Li 2 O·74SiO 2 glass (mol%) formulated in the liquid metastable immiscibility dome of the binary system has been investigated by XRD and TEM-replica electron microscopy. Results were discussed by considering the phases that can be formed in the Li 2 O-Cr 2 O 3 -SiO 2 partial equilibrium ternary diagram. From these glasses, lithium disilicate is the main crystalline phase after thermal treatments at 550–650 °C. Maximum crystallization is obtained with the lowest content addition of Cr 2 O 3 (0.05 mol%). Glass-in-glass phase separation was observed in these glasses coexisting with the crystallization areas. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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