NDLI: Phase transformations in glass of the MgO–Al2O3–SiO2

Content Provider	Springer Nature Link
Author	Alekseeva, I. P. Dymshits, O. S. Zhilin, A. A. Mikhailov, M. D. Khubetsov, A. A.
Copyright Year	2015
Abstract	Phase transformations upon crystallization of glasses in a magnesium-aluminosilicate system nucleated with TiO2 as a nucleating agent, both doped and undoped with yttrium oxide, which were thermally treated in singleand two-stage modes in the temperature range 750–1200°C, have been investigated. Use of the two-stage mode with the first stage (nucleation) at 750°C yields changes in the phase composition and the temperature range of the existence of the metastable crystalline phases formed within the 800–1000°C range. At the highest thermal treatment temperature (1200°C), one observes crystallization of phases that are stable ones for this particular glass composition, irrespective of the existence of the nucleation stage. Doping with Y2O3 significantly affects the character of liquid phase separation and crystallization through the increase of the temperature of formation of the first crystalline phases. There appear yttrium-containing phases—yttrium disilicate and titanate. The mechanism of the effect of yttrium oxide on the phase separation processes has been suggested.
Starting Page	597
Ending Page	606
Page Count	10
File Format	PDF
ISSN	10876596
Journal	Glass Physics and Chemistry
Volume Number	41
Issue Number	6
e-ISSN	1608313X
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-12-06
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials Materials Science Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Condensed Matter Physics

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