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BaO effect on the thermal properties of the phosphate glasses inside the Na2O – SrO – TiO2 – B2O3 - P2O5 system
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2014 (English)In: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 405, 33-38 p.Article in journal (Refereed) Published
Abstract [en]

The glasses in the Na2O-SrO-BaO-TiO2-B2O3-P2O5 system were prepared by the conventional quenching route. In the present work, we studied the effect of Ba-Sr substitution on some physical parameters such as density, molar volume, micro-hardness, glass transition temperature (T-g), and crystallization temperature (T-c) of series of glasses with the following composition 33.33Na(2)O-(10 - x)SrO - xBaO-10TiO(2)-30B(2)O(3)-16.67P(2)O(5). The crystallization of the glasses by heat-treatments is performed and X-ray diffraction (XRD) showed the formation of a ferroelectric phase SrTiO3 and Na4Ba2(PO3)(6) in their network. The kinetic of the crystallization is carried out by using DSC technique, and the activation energy and the Avrami parameter (n) are determined.

Place, publisher, year, edition, pages
2014. Vol. 405, 33-38 p.
National Category
Geosciences, Multidisciplinary
Research subject
Earth Science with specialization in Mineral Chemistry, Petrology and Tectonics
URN: urn:nbn:se:uu:diva-240995DOI: 10.1016/j.jnoncrysol.2014.08.031ISI: 000347266400007OAI: oai:DiVA.org:uu-240995DiVA: diva2:777372
Available from: 2015-01-08 Created: 2015-01-08 Last updated: 2015-02-09Bibliographically approved

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Lazor, Peter
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Solid Earth Geology
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