Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system

Detalhes bibliográficos
Autor(a) principal: Dantas, Noelio Oliveira
Data de Publicação: 2012
Outros Autores: Silva, Valdeir A., D. Neto, Omar. O., Nascimento, Marcio Luis Ferreira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/15236
Resumo: Texto completo: acesso restrito. p. 347-354
id UFBA-2_8248183dbd5734fa5be21631d0697ad5
oai_identifier_str oai:repositorio.ufba.br:ri/15236
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Dantas, Noelio OliveiraSilva, Valdeir A.D. Neto, Omar. O.Nascimento, Marcio Luis FerreiraDantas, Noelio OliveiraSilva, Valdeir A.D. Neto, Omar. O.Nascimento, Marcio Luis Ferreira2014-07-18T16:21:18Z20120103-9733http://repositorio.ufba.br/ri/handle/ri/15236v. 42Texto completo: acesso restrito. p. 347-354A glass matrix with nominal composition 50Li2O·45B2O3·5Al2O3 (mol%) was synthesized, and its physical properties were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD), and atomic force microscopy (AFM). The glass transition temperature T g, the crystallization-onset temperature T x,, the crystallization peak temperatures T c1 and T c2, and the fusion peak temperatures T m1 and T m2 were determined from at least two glass matrix phases to be approximately 382, 457, 486, 574, 761, and 787 °C, respectively, at 5 °C/min heating rate. Heat treatments at 450 °C for an increasing sequence of time intervals allowed control over the amount of crystallization. Additional information on the crystallization kinetics for the LBA glass matrix was gathered from AFM images, DTA thermograms, and XRD diffractograms. The latter technique showed that LiBO2 (ICDD-16568) and Li3AlB2O6 (ICDD-51754) phases are formed in the glass–ceramic system. Debye–Scherrer analysis of the XRD peaks revealed a competition between the evolutions of crystal phases during heat treatment. Activation energies for crystallization, obtained from theoretical models applied to the DTA data showed that the crystallization is heterogeneous. The AFM images demonstrated that this heterogeneous crystallization starts at the surface of the LBA glass matrix and identified crystal sizes in agreement with the results of the Debye–Scherrer analysis. Our study shows that thermal and structural characterization techniques can be combined with theoretical results drawn from well-tested models to offer a unified view of crystallization in a glass–ceramics system.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-04-29T14:52:14Z No. of bitstreams: 1 Marcio L. F. Nascimento.pdf: 628584 bytes, checksum: 3b4265411e73e607109fe2662f9dad8c (MD5)Approved for entry into archive by LIVIA FREITAS (livia.freitas@ufba.br) on 2014-07-18T16:21:18Z (GMT) No. of bitstreams: 1 Marcio L. F. Nascimento.pdf: 628584 bytes, checksum: 3b4265411e73e607109fe2662f9dad8c (MD5)Made available in DSpace on 2014-07-18T16:21:18Z (GMT). No. of bitstreams: 1 Marcio L. F. Nascimento.pdf: 628584 bytes, checksum: 3b4265411e73e607109fe2662f9dad8c (MD5) Previous issue date: 2012http://dx.doi.org/ 10.1007/s13538-012-0097-7reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAGlassCrystallizationLi2O–B2O3–Al2O3 Vitreous SystemLBA glassControl of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous systemBrazilian Journal of Physicsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINALMarcio L. F. Nascimento.pdfMarcio L. F. Nascimento.pdfapplication/pdf628584https://repositorio.ufba.br/bitstream/ri/15236/1/Marcio%20L.%20F.%20Nascimento.pdf3b4265411e73e607109fe2662f9dad8cMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/15236/2/license.txt0d4b811ef71182510d2015daa7c8a900MD52TEXTMarcio L. F. Nascimento.pdf.txtMarcio L. F. Nascimento.pdf.txtExtracted texttext/plain29719https://repositorio.ufba.br/bitstream/ri/15236/3/Marcio%20L.%20F.%20Nascimento.pdf.txt9ba460f86700c81d6644e24886100c03MD53ri/152362022-08-08 13:17:50.554oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:50Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
dc.title.alternative.pt_BR.fl_str_mv Brazilian Journal of Physics
title Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
spellingShingle Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
Dantas, Noelio Oliveira
Glass
Crystallization
Li2O–B2O3–Al2O3 Vitreous System
LBA glass
title_short Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
title_full Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
title_fullStr Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
title_full_unstemmed Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
title_sort Control of crystallization kinetics and study of the thermal, structural and morphological properties of an Li2O–B2O3–Al2O3 vitreous system
author Dantas, Noelio Oliveira
author_facet Dantas, Noelio Oliveira
Silva, Valdeir A.
D. Neto, Omar. O.
Nascimento, Marcio Luis Ferreira
author_role author
author2 Silva, Valdeir A.
D. Neto, Omar. O.
Nascimento, Marcio Luis Ferreira
author2_role author
author
author
dc.contributor.author.fl_str_mv Dantas, Noelio Oliveira
Silva, Valdeir A.
D. Neto, Omar. O.
Nascimento, Marcio Luis Ferreira
Dantas, Noelio Oliveira
Silva, Valdeir A.
D. Neto, Omar. O.
Nascimento, Marcio Luis Ferreira
dc.subject.por.fl_str_mv Glass
Crystallization
Li2O–B2O3–Al2O3 Vitreous System
LBA glass
topic Glass
Crystallization
Li2O–B2O3–Al2O3 Vitreous System
LBA glass
description Texto completo: acesso restrito. p. 347-354
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2014-07-18T16:21:18Z
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/15236
dc.identifier.issn.none.fl_str_mv 0103-9733
dc.identifier.number.pt_BR.fl_str_mv v. 42
identifier_str_mv 0103-9733
v. 42
url http://repositorio.ufba.br/ri/handle/ri/15236
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.source.pt_BR.fl_str_mv http://dx.doi.org/ 10.1007/s13538-012-0097-7
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/15236/1/Marcio%20L.%20F.%20Nascimento.pdf
https://repositorio.ufba.br/bitstream/ri/15236/2/license.txt
https://repositorio.ufba.br/bitstream/ri/15236/3/Marcio%20L.%20F.%20Nascimento.pdf.txt
bitstream.checksum.fl_str_mv 3b4265411e73e607109fe2662f9dad8c
0d4b811ef71182510d2015daa7c8a900
9ba460f86700c81d6644e24886100c03
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1808459476891598848

Registros relacionados