Devitrification and Phase Separation of Zinc Borosilicate Glasses in the Presence of MgO, P 2 O 5 , and ZrO 2
Source abstract
Abstract
A base glass composition which undergoes phase separation was chosen in the system Na 2 O‐ZnO‐B 2 O 3 ‐SiO 2 . Spontaneous and reheat‐treatment opal glasses were synthesized by addition of different amounts of oxides such as P 2 O 5 and ZrO 2 . To clarify devitrification, visible spectroscopy was performed for all samples. Reheat‐treated samples showed Tyndall effect in low temperatures, while they were completely opacified after soaking in 800°C for 3 h. P 2 O 5 ‐or ZrO 2 ‐containing samples opacified spontaneously. The mechanism of opacification in glasses containing the MgO and ZrO 2 was partial crystallization, while in the mechanism of P 2 O 5 ‐bearing one was liquid–liquid phase separation.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Glass properties and applications · Mineralogy and Gemology Studies · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ceramics Division The Department of Metallurgy & Materials Engineering Iran University of Science & Technology Narmak Tehran 1684613114 Iran
References (17)
Show source-provided references
1. G. B.Rothenberg Glass Technology Recent Developments 211–212 Noyes Data Corp. Park Ridge NJ 1976.
2. Vogel W. · 1985 · 202
3. Boyd D. C. · 1986 · 141
4. kingery W. D. · 1976 · 666
5. 10.1111/j.1151-2916.1981.tb10303.x10.1111/j.1151-2916.1981.tb10303.x ↗
6. J. E.Flannery J. L.Stempin andD. R.Wexell “Fluorophosphate Opal Glasses” U.S. Patent 3661601 1981.
7. R. M.Wiker “Zinc Borosilicate Opal Glasses ” U.S. Patent 4376170 1983.
8. P.Taylor “A Review of Phase Separation in Borosilicate Glasses With Reference to Nuclear Fuel Waste Immobilization Whiteshell Nuclear Research Establishment Atomic Energy of Canada AECL‐10173 ” (1990) 22.
9. Vogel W. · 1985 · 196
10. The Development and Characterisation of Zinc Crystal Glazes used for Amakusa‐Like Soft Porcelains
11. Shelby J. E. · 2005 · 7010.1039/9781847551160 ↗
12. Doremus R. H. · 1994 · 60
13. Mazurin O. V. · 1984 · 165
14. McMillan P. W. · 1979 · 76
15. 10.1016/j.jnoncrysol.2003.12.05410.1016/j.jnoncrysol.2003.12.054 ↗
16. Höland W. · 2002 · 115
17. 10.1016/j.jeurceramsoc.2005.12.01610.1016/j.jeurceramsoc.2005.12.016 ↗