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DC Field | Value | Language |
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dc.contributor.author | Teixeira, Silvio Rainho | - |
dc.contributor.author | Romero, Maximina | - |
dc.contributor.author | Rincon, Jesus Ma. | - |
dc.date.accessioned | 2014-05-20T13:23:02Z | - |
dc.date.accessioned | 2016-10-25T16:44:06Z | - |
dc.date.available | 2014-05-20T13:23:02Z | - |
dc.date.available | 2016-10-25T16:44:06Z | - |
dc.date.issued | 2010-02-01 | - |
dc.identifier | http://dx.doi.org/10.1111/j.1551-2916.2009.03431.x | - |
dc.identifier.citation | Journal of The American Ceramic Society. Malden: Wiley-blackwell, v. 93, n. 2, p. 450-455, 2010. | - |
dc.identifier.issn | 0002-7820 | - |
dc.identifier.uri | http://hdl.handle.net/11449/6872 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/6872 | - |
dc.description.abstract | This work reports the feasibility results of recycling sugar cane bagasse ash (SCBA) to produce glass-ceramic. The major component of this solid residue is SiO2 (>89%). A 100 g batch composition containing ash, CaO and Na2O was melted and afterward, poured into water to produce a glass frit. The crystallization kinetic study by nonisothermal method was performed on powder samples (<63 mu m) at five different heating rates. Wollastonite is the major phase in crystallization at T>970 degrees C, and below this temperature there is a predominance of rankinite. The crystallization activation energies calculated by the Kissinger and Ligero methods are equivalent: 374 +/- 10 and 378 +/- 13 kJ/mol. The growth morphology parameters have equal values n = m = 1.5 indicating that bulk nucleation is the dominant mechanism in this crystallization process, where there is a three-dimensional growth of crystals with polyhedron-like morphology controlled by diffusion from a constant number of nuclei. However, differential thermal analysis (DTA) curves on both monolithic and powder glass samples suggest that crystallization of the powder glass sample occurs through a surface mechanism. The divergence in both results suggests that the early stage of surface crystallization occurs through a three-dimensional growth of crystals, which will then transform to one-dimensional growth. | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.format.extent | 450-455 | - |
dc.language.iso | eng | - |
dc.publisher | Wiley-Blackwell | - |
dc.source | Web of Science | - |
dc.title | Crystallization of SiO2-CaO-Na2O Glass Using Sugarcane Bagasse Ash as Silica Source | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | CSIC | - |
dc.description.affiliation | UNESP, Dept Fis Quim & Biol, BR-19060080 Presidente Prudente, SP, Brazil | - |
dc.description.affiliation | CSIC, Eduardo Torroja Inst Construct Sci, Dept Bldg Construct Syst, Madrid 28033, Spain | - |
dc.description.affiliationUnesp | UNESP, Dept Fis Quim & Biol, BR-19060080 Presidente Prudente, SP, Brazil | - |
dc.description.sponsorshipId | FAPESP: 04368-4/08 | - |
dc.identifier.doi | 10.1111/j.1551-2916.2009.03431.x | - |
dc.identifier.wos | WOS:000274176500028 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Journal of the American Ceramic Society | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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