The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system

Detalhes bibliográficos
Autor(a) principal: Silva, V. A.
Data de Publicação: 2014
Outros Autores: Nascimento, M. L. F., Morais, P. C., Dantas, Noelio Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/18089
Resumo: Texto completo: acesso restrito. p.104–108
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spelling Silva, V. A.Nascimento, M. L. F.Morais, P. C.Dantas, Noelio OliveiraSilva, V. A.Nascimento, M. L. F.Morais, P. C.Dantas, Noelio Oliveira2015-10-09T18:46:07Z20140022-3093http://repositorio.ufba.br/ri/handle/ri/18089v. 404, n. 15Texto completo: acesso restrito. p.104–108A 50Li2O·45B2O3·5Al2O3 (LBA, in mol%) glass matrix doped with increasing TiO2 content was synthesized and its physical properties were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD), and Raman spectroscopy. The thermograms showed typical vitreous curves with two clear crystallization peaks that are related to major crystalline phases in this glass system and in agreement with XRD results. The higher temperature crystallization peak (TC2) shifted towards the lower temperature peak (TC1) as TiO2 content increased. After specific heat treatments, the XRD measurements revealed the α-LiBO2, γ-LiAlO2 and LiTiO2 crystalline phase formations and the predominance of the first phase. The γ-LiTiO2 phase was particularly responsible for the variation in the second peak crystallization kinetics. In addition, crystal growth phase competition between γ-LiAlO2 and LiTiO2 occurred as TiO2 content increased; however, the main α-LiBO2 phase did not change. Raman spectra showed typical phonon modes associated with crystalline phases observed in XRD and main phases observed in DTA. Phonon modes were also associated with the LiTiO2 crystalline phase that was first observed in the glassy matrix.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2015-03-25T14:20:57Z No. of bitstreams: 1 V.A. Silva.pdf: 1134783 bytes, checksum: 4d3329c9ef3543af62a22e6871b561e8 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2015-10-09T18:46:07Z (GMT) No. of bitstreams: 1 V.A. Silva.pdf: 1134783 bytes, checksum: 4d3329c9ef3543af62a22e6871b561e8 (MD5)Made available in DSpace on 2015-10-09T18:46:07Z (GMT). No. of bitstreams: 1 V.A. Silva.pdf: 1134783 bytes, checksum: 4d3329c9ef3543af62a22e6871b561e8 (MD5) Previous issue date: 2014http://dx.doi.org/10.1016/j.jnoncrysol.2014.07.046reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACrystallizationGlass-ceramicTiO2The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass systemJournal of Non-Crystalline Solidsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01Brasilinfo:eu-repo/semantics/openAccessengORIGINALV.A. Silva.pdfV.A. Silva.pdfapplication/pdf1134783https://repositorio.ufba.br/bitstream/ri/18089/1/V.A.%20Silva.pdf4d3329c9ef3543af62a22e6871b561e8MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/18089/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTV.A. Silva.pdf.txtV.A. 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dc.title.pt_BR.fl_str_mv The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
dc.title.alternative.pt_BR.fl_str_mv Journal of Non-Crystalline Solids
title The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
spellingShingle The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
Silva, V. A.
Crystallization
Glass-ceramic
TiO2
title_short The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
title_full The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
title_fullStr The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
title_full_unstemmed The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
title_sort The structural role of Ti in a thermally-treated Li2O − B2O3–Al2O3 glass system
author Silva, V. A.
author_facet Silva, V. A.
Nascimento, M. L. F.
Morais, P. C.
Dantas, Noelio Oliveira
author_role author
author2 Nascimento, M. L. F.
Morais, P. C.
Dantas, Noelio Oliveira
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva, V. A.
Nascimento, M. L. F.
Morais, P. C.
Dantas, Noelio Oliveira
Silva, V. A.
Nascimento, M. L. F.
Morais, P. C.
Dantas, Noelio Oliveira
dc.subject.por.fl_str_mv Crystallization
Glass-ceramic
TiO2
topic Crystallization
Glass-ceramic
TiO2
description Texto completo: acesso restrito. p.104–108
publishDate 2014
dc.date.issued.fl_str_mv 2014
dc.date.accessioned.fl_str_mv 2015-10-09T18:46:07Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/18089
dc.identifier.issn.none.fl_str_mv 0022-3093
dc.identifier.number.pt_BR.fl_str_mv v. 404, n. 15
identifier_str_mv 0022-3093
v. 404, n. 15
url http://repositorio.ufba.br/ri/handle/ri/18089
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.jnoncrysol.2014.07.046
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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