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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Teixeira, Silvio R. | - |
dc.contributor.author | Romero, Maximina | - |
dc.contributor.author | Rincón López, Jesús María | - |
dc.date.accessioned | 2012-12-12T10:53:55Z | - |
dc.date.available | 2012-12-12T10:53:55Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Journal of the American Ceramic Society, 93 (2010) 450–455 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/62603 | - |
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 100g batch composition containing ash, CaO and Na2O was melted and afterward, poured into water to produce a glass frit. The crystallization kinetic study by non-isothermal method was performed on powder samples (<63m) at five different heating hates. Wollastonite is the major phase in crystallization at T > 970oC, 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 kJ/mol 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, 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. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | John Wiley & Sons | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | waste | es_ES |
dc.subject | valorisation | es_ES |
dc.subject | vitrification | es_ES |
dc.subject | wollastonite | es_ES |
dc.subject | glass-ceramic | es_ES |
dc.subject | kinetic | es_ES |
dc.title | Crystallization of SiO2-CaO-Na2O glass using sugarcane bagasse ash (SCBA) as silica source | es_ES |
dc.type | artículo | es_ES |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | DOI: 10.1111/j.1551-2916.2009.03431.x | es_ES |
dc.identifier.e-issn | 1551-2916 | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
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Journal of the American Ceramic Society, 93 (2010) 2, 450-455.pdf | 634,82 kB | Adobe PDF | Visualizar/Abrir |
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