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RESEARCH PRODUCT
ZrTiO4 materials obtained by spark plasma reaction-sintering
Rodrigo MorenoVictoria Garcia RochaAdolfo FernándezMaría Dolores SalvadorAmparo BorrellAndrés GómezE. López-lópezsubject
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 dielectricdescription
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 the raw materials: m-ZrO2 (∼0.3 μm) and anatase-TiO2 (∼40 nm). Dense materials were mechanically and microstructural characterised. The fracture strength was measured by biaxial testing, giving values of about 200 MPa. © 2013 Published by Elsevier Ltd. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 |