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Improvement of Ti Processing through Colloidal Techniques

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorGarcía das Neves, Roberto
dc.contributor.authorEscribano Quintana, Juan Antonio
dc.contributor.authorFerrari, Begoña
dc.contributor.authorGordo Odériz, Elena
dc.contributor.authorSánchez-Herencia, A. J.
dc.date.accessioned2013-05-17T10:11:54Z
dc.date.available2013-05-17T10:11:54Z
dc.date.issued2012-08-01
dc.description.abstractThe colloid-chemistry control of metallic powders in aqueous slurries is proposed as a way to prepare Ti powders with small particle size for a better pressing behavior through the spray dry process. The chemical-physic behavior of titanium powders with two different particle size distributions dispersed in water has been studied by measuring the zeta potential as a function of pH, and dispersant concentration. The employment of poly-acrylic dispersants allowed the fabrication of stable slurries with solid contents up to 50 vol% that have been sprayed under different conditions to form agglomerates ranging between 50 and 200 µm. Conditions were selected to achieve spherical agglomerates formed by a broad distribution of particle sizes that shown excellent flowability. Agglomerates were pressed in a uniaxial die to measure the compressibility, showing an improvement in pressing behavior with respect to powders with bigger particle size. The sintering behavior is also improved, as values of 96 % of the theoretical density were obtained for compacts sintered in vacuum at 1100 ºC for 30 minutes.
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dc.identifier.bibliographicCitationKey Engineering Materials, 2012, v. 520, 335-340.
dc.identifier.doi10.4028/www.scientific.net/KEM.520.335
dc.identifier.issn1013-9826
dc.identifier.publicationfirstpage335
dc.identifier.publicationlastpage340
dc.identifier.publicationtitleKey engineering materials
dc.identifier.publicationvolume520
dc.identifier.urihttps://hdl.handle.net/10016/16983
dc.identifier.uxxiAR/0000012489
dc.language.isoeng
dc.relation.publisherversionhttp://dx.doi.org/10.4028/www.scientific.net/KEM.520.335
dc.rights© Trans Tech Publications
dc.rights.accessRightsopen access
dc.subject.ecienciaIngeniería Industrial
dc.subject.ecienciaMateriales
dc.subject.ecienciaQuímica
dc.subject.otherSlurriesen
dc.subject.otherDispersanten
dc.subject.otherSpray dryen
dc.subject.otherParticle size distributionen
dc.subject.otherWateren
dc.titleImprovement of Ti Processing through Colloidal Techniques
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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