Crystallization behaviour of the systems Na2O/BaO/TiO2/SiO2/B2O3/Al2O3 and Na2O/BaO/TiO2/SiO2/B2O3/Fe2O3/Al2O3

Simple item page
creativework.keywordsBarium titanate, Crystallization, Dielectric glass-ceramics
creativework.publisherUniversity of Chemical Technology and Metallurgyjournal@uctm.eduen
dc.contributor.authorHarizanova R.
dc.contributor.authorMazhdrakova A.
dc.contributor.authorVladislavova L.
dc.contributor.authorAvdeev G.
dc.contributor.authorBocker C.
dc.contributor.authorGugov I.
dc.contributor.authorRüssel C.
dc.date.accessioned2024-07-16T11:16:47Z
dc.date.accessioned2024-07-16T11:18:22Z
dc.date.available2024-07-16T11:16:47Z
dc.date.available2024-07-16T11:18:22Z
dc.date.issued2015-01-01
dc.description.abstractThis work reports data on the synthesis of glasses in three selected compositions of each of the systems Na2O/BaO/ TiO2/SiO2/B2O3/Al2O3 and Na2O/BaO/TiO2/SiO2/B2O3/Fe2O3/Al2O3 and the preparation of glass-ceramics by applying appropriate time-temperature regimes. Crystallization of a large volume fraction of cubic BaTiO3 is observed in both systems. The phase compositions of the obtained annealed specimens are investigated by x-ray diffraction, while the microstructure of the obtained glass-ceramics is studied by optical and scanning electron microscopy. The barium titanate crystals in the samples containing iron have a size varying from ca 100 nm to some hundreds of nm. They form interconnected structures which tend to grow further for all temperature-time schedules applied. The microstructure of the annealed samples containing no iron, as proved by optical and electron scanning microscopy, is characterized by barium titanate crystals of a size of some micrometers which are uniformly dispersed in the amorphous matrix. They start to grow independently and tend to merge upon longer annealing times.
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:84937938674en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1111
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937938674&origin=inward
dc.titleCrystallization behaviour of the systems Na2O/BaO/TiO2/SiO2/B2O3/Al2O3 and Na2O/BaO/TiO2/SiO2/B2O3/Fe2O3/Al2O3
dc.typeArticle
oaire.citation.issue4
oaire.citation.volume50
Files
Collections
Articles