0000000000269415

AUTHOR

María Dolores Salvador

showing 2 related works from this author

ZrTiO4 materials obtained by spark plasma reaction-sintering

2014

Zirconium titanate (ZrTiO4), have many attractive properties such as high resistivity, high dielectric constant, high permittivity at microwave frequencies and excellent temperature stability for microwave properties. Zirconium titanate dense materials are proposed for many structural applications, but fully reacted and completely dense pieces are difficult to obtain by conventional routes. In this work, fully dense zirconium titanate materials (∼98%) were obtained at lower temperatures (1300-1400 C) and short processing time by non-conventional technique; spark plasma-reaction sintering (SPRS). Homogeneous and stable starting powders mixture with the adequate composition was prepared from …

PermittivityWork (thermodynamics)Materials scienceMechanical EngineeringCeramic-matrix compositesSinteringMechanical propertiesRaw materialMicrostructureIndustrial and Manufacturing EngineeringFlexural strengthSinteringMechanics of MaterialsCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICACeramics and CompositesCeramic-matrix composites (CMCs)Composite materialMicrostructureMicrowaveHigh-κ dielectric
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Microstructure and mechanical properties of plasma spraying coatings from YSZ feedstocks comprising nano-and submicron-sized particles

2015

Atmospheric plasma spraying (APS) is an attractive technique to obtain nanostructured coatings due to its versatility, simplicity and relatively low cost. However, nanoparticles cannot be fed into the plasma using conventional feeding systems, due to their low mass and poor flowability, and must be adequately reconstituted into sprayable micrometric agglomerates. In this work, nanostructured and submicron/nanostiuctured powders of yttria-stabilised zirconia (YSZ) were deposited using APS, with a view to obtaining high-performance thermal bather coatings (IBC). All powders were reconstituted by spray-drying from different solid loading suspensions, followed by a thermal treatment of the spra…

Materials scienceProcess Chemistry and TechnologyYSZ coatingsMicrostructureEngineering physicsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsRegional developmentCIENCIA DE LOS MATERIALES E INGENIERIA METALURGICAAtmospheric plasma sprayingThermal barrier coatingsNano-Materials ChemistryCeramics and CompositesChristian ministryComposite materialReconstituted powders
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