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dc.contributor.author
Talou, Mariano Hernán
dc.contributor.author
Moreno, Rodrigo
dc.contributor.author
Camerucci, Maria Andrea
dc.date.available
2016-04-13T14:47:04Z
dc.date.issued
2014-04
dc.identifier.citation
Talou, Mariano Hernán; Moreno, Rodrigo; Camerucci, Maria Andrea; Porous mullite ceramics formed by direct consolidation using native and granular cold-water-soluble starches; Wiley; Journal of the American Ceramic Society; 97; 4; 4-2014; 1074-1082
dc.identifier.issn
0002-7820
dc.identifier.uri
http://hdl.handle.net/11336/5181
dc.description.abstract
In this article, the processing and microstructures of porous mullite bodies prepared by modifying the conventional route of the starch consolidation casting method were studied. The proposed route, called the “soluble route”, involves the use of native starches (i.e., potato, cassava, and corn starches) and a synthesized granular cold-water-soluble (GCWS) starch. Stable aqueous mullite-starch suspensions (0.25 starch volume fraction of 40 vol% total solids) were prepared by mixing. The total starch content was a mixture of ungelatinized native starch and GCWS starch with a 1:10 ratio of GCWS starch to total starch. Steady-state shear flow properties of the suspensions were analyzed by measuring viscosity. The addition of CGWS starch increased the starting suspension viscosity and thus prevented the particle segregation. Porous mullite bodies were obtained by heating (80°C, 2 h) the suspensions in metallic molds and by drying (40°C, 24 h) and sintering (1650°C, 2 h) the green disks after burning out the starch (650°C, 2 h). Green bodies obtained before and after the burning-out process, and the sintered disks were characterized with density and porosity measurements (Archimedes method) and microstructural analysis by scanning electron microscopy. The phases generated after the sintering process were determined by X-ray diffraction analysis, and pore size distributions were studied by Hg-porosimetry. The obtained results showed that the use of the GCWS starch made the shaping of homogeneous mullite bodies without cracks or deformations possible along with the development of controlled porous microstructures.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Starch Direct Consolidation
dc.subject
Granular Cold-Water-Soluble Starch
dc.subject
Porous Ceramic
dc.subject.classification
Cerámicos
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Porous mullite ceramics formed by direct consolidation using native and granular cold-water-soluble starches
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-06 15:52:43.262787-03
dc.journal.volume
97
dc.journal.number
4
dc.journal.pagination
1074-1082
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Talou, Mariano Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
dc.description.fil
Fil: Moreno, Rodrigo. Instituto de Ceramica y Vidrio de Madrid; España
dc.description.fil
Fil: Camerucci, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
dc.journal.title
Journal of the American Ceramic Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1111/jace.12852
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jace.12852
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jace.12852/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/issn/0002-7820
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