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dc.contributorVirginia Tech. Department of Materials Science and Engineeringen_US
dc.contributor.authorLu, Kathyen_US
dc.contributor.authorMahapatra, Manoj K.en_US
dc.date.accessioned2015-05-21T19:47:24Z
dc.date.available2015-05-21T19:47:24Z
dc.date.issued2008-10-01
dc.identifier.citationLu, K., Mahapatra, M. K. (2008). Network structure and thermal stability study of high temperature seal glass. Journal of Applied Physics, 104(7). doi: 10.1063/1.2979323en_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://hdl.handle.net/10919/52430
dc.description.abstractHigh temperature seal glass has stringent requirement on glass thermal stability, which is dictated by glass network structures. In this study, a SrO-La2O3-Al2O3-B2O3-SiO2 based glass system was studied using nuclear magnetic resonance, Raman spectroscopy, and x-ray diffraction for solid oxide cell application purpose. Glass structural unit neighboring environment and local ordering were evaluated. Glass network connectivity as well as silicon and boron glass former coordination were calculated for different B2O3:SiO2 ratios. Thermal stability of the borosilicate glasses was studied after thermal treatment at 850 degrees C. The study shows that high B2O3 content induces BO4 and SiO4 structural unit ordering, increases glass localized inhomogeneity, decreases glass network connectivity, and causes devitrification. Glass modifiers interact with either silicon- or boron-containing structural units and form different devitrified phases at different B2O3:SiO2 ratios. B2O3-free glass shows the best thermal stability among the studied compositions, remaining stable after thermal treatment for 200 h at 850 degrees C. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2979323]en_US
dc.description.sponsorshipUnited States. Department of Energy - Grant No. DE-FC07-06ID14739en_US
dc.format.extent10 pagesen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.subjectOzoneen_US
dc.subjectNetworksen_US
dc.subjectBorosilicate glassesen_US
dc.subjectNuclear magnetic resonanceen_US
dc.subjectGlass transitionsen_US
dc.titleNetwork structure and thermal stability study of high temperature seal glassen_US
dc.typeArticle - Refereeden_US
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/104/7/10.1063/1.2979323en_US
dc.date.accessed2015-04-24en_US
dc.title.serialJournal of Applied Physicsen_US
dc.identifier.doihttps://doi.org/10.1063/1.2979323
dc.type.dcmitypeTexten_US


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