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Thermophysical properties of porous Ti2AlC and Ti3SiC2 produced by powder metallurgy

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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.affiliation.institutoUC3M. Instituto Tecnológico de Química y Materiales Álvaro Alonso Barbaes
dc.contributor.authorTsipas, Sophia Alexandra
dc.contributor.authorTabares Lorenzo, Eduardo
dc.contributor.authorWeissgaerber, Thomas
dc.contributor.authorHutsch, Thomas
dc.contributor.authorSket, Federico
dc.contributor.authorVelasco Núñez, Beatriz
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2023-04-27T11:39:21Z
dc.date.available2023-04-27T11:39:21Z
dc.date.issued2021-03-15
dc.description.abstractThe physicochemical properties of porous Ti2AlC and Ti3SiC2 MAX phase compounds with controlled porosity and grain size obtained by powder metallurgy techniques was studied in depth in order to access their suitability of applications such as catalytic devices on vehicles, heat exchangers or impact resistant structures. The study was performed on isostatic consolidated samples with different amount (20-60 vol%) and size of space holder (250-1000 µm) and in samples without space holder. Oxidation tests were performed at different temperatures for each material depending on their maximum service temperature. In order to understand the oxidation mechanism, oxidation kinetics were analysed to determine the influence of size and amount of porosity in each case. In addition, the microstructure and composition of the oxide layers formed after the tests were analysed by scanning electron microscopy (SEM). Electrical and thermal conductivity where studied at room temperature and at temperature up to 1000 degrees C. The effect of pore size and cell wall thickness is discussed. Permeability of foams was also measured. The effect of micro porosity and macro porosity on permeability is discussed. The coefficient of thermal expiation was also measured for all foams produced. It is established that these porous MAX phases have suitable properties for their use as catalytic substrates, heat exchanges, high temperature filters or volumetric solar receivers.en
dc.description.sponsorshipThis research was funded by the Regional Government of Madrid (program ADITIMAT-CM. ref. S2018/NMT-4411) and by the Ministry of Economy and Competitiveness of Spain (program MINECO Ramón y Cajal contract RYC-2014-1504). Dr. Beatriz Valasco is grateful for the funding provided by the Insitituto Alvaro Alonso Barba (Universidad Carlos III de Madrid) for the research stay at the IFAM. Dresden.en
dc.format.extent15
dc.identifier.bibliographicCitationTsipas, S., Tabarés, E., Weissgaerber, T., Hutsch, T., Sket, F., & Velasco, B. (2021). Thermophysical properties of porous Ti2AlC and Ti3SiC2 produced by powder metallurgy. Journal of Alloys and Compounds, 857, 158145.en
dc.identifier.doihttps://doi.org/10.1016/j.jallcom.2020.158145
dc.identifier.issn0925-8388
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue158145
dc.identifier.publicationlastpage15
dc.identifier.publicationtitleJournal of Alloys and Compoundsen
dc.identifier.publicationvolume857
dc.identifier.urihttps://hdl.handle.net/10016/37211
dc.identifier.uxxiAR/0000028355
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDComunidad de Madrid. S2018/NMT-4411es
dc.relation.projectIDGobierno de España. RYC-2014-1504es
dc.rights© 2020 Elsevier B.V.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherMax phasesen
dc.subject.otherOxidation kineticsen
dc.subject.otherPorous materialsen
dc.subject.otherThermal shock resistanceen
dc.titleThermophysical properties of porous Ti2AlC and Ti3SiC2 produced by powder metallurgyen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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