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Alumina-zirconia coatings obtained by suspension plasma spraying from highly concentrated aqueous suspensions
Elsevier (2016)Suspension plasma spraying (SPS) deposition represents an innovative technique to produce coatings that exhibit improved properties. However, the key to obtain coatings with superior functional properties relies on the ... -
Atmospheric plasma spraying coatings from alumina–titania feedstock comprising bimodal particle size distributions
Copyright © Elsevier (2013)In this work, Al2O3–13 wt% TiO2 submicron-nanostructured powders were deposited using atmospheric plasma spraying. The feedstocks were obtained by spray drying two starting suspensions of different solids content, prepared ... -
Characterization of silica–water nanofluids dispersed with an ultrasound probe: A study of their physical properties and stability
Elsevier (2012)The stability and agglomeration state of nanofluids are key parameters for their use in different applications. Silica nanofluids were prepared by dispersing the nanoparticles in distilled water using an ultrasonic probe, ... -
Comparison of freeze drying and spray drying to obtain porous nanostructured granules from nanosized suspensions
Elsevier (2012)This work studies the spray drying and freeze drying of different nanosized ceramic materials and the physicochemical characteristics of the obtained granules. Colloidal suspensions of alumina, titania, and a 87/13 mixture ... -
Dispersion of mixtures of submicrometer and nanometre sized titanias to obtain porous bodies
Elsevier (2013-12)The stability and rheological behaviour of bimodal titania suspensions was studied. Bimodal mixtures were prepared by mixing nanosized TiO2 powders with an average primary size of ∼20–40 nm and surface area of ∼50 m2 g−1 ... -
Dispersion of TiO2nanopowders to obtain homogeneous nanostructured granules by spray-drying
Elsevier (2011)This work deals with the dispersion and stabilisation of nanosized TiO2 particles in an aqueous medium as a first step in the preparation of spray-dried nanostructured powders. A colloidal route leading to the production ... -
Effect of slurry properties and operational conditions on the structure and properties of porcelain tile granules dried in an acoustic levitator
Elsevier (2012)Spray-drying is a unit operation highly important in many industrial applications. In this work, the influence of the drying conditions on the final grain properties has been investigated in single droplet experiments.Porcelain ... -
Preparation of high solids content nano-titania suspensions to obtain spray-dried nanostructured powders for atmospheric plasma spraying
Elsevier (2012)Nanosized TiO2powder with an average primary size of ∼20 nm and surface area of ∼50 m2/g (Aeroxide®P25, Degussa-Evonik, Germany) was used as starting material. A colloidal titania suspension from the same supplier was also ... -
El proceso de secado por atomización: formación de gránulos y cinética de secado de gotas
Sociedad Española de Cerámica y Vídrio (2013-07)Spray drying is a unit operation very common in many industrial processes. For each particular application, the resulting granulated material must possess determined properties that depend on the conditions in which the ... -
Study of colloidal behaviour and rheology of Al2O3-TiO2 nanosuspensions to obtain free-flowing spray-dried granules for atmospheric plasma spraying
Elsevier (2013-09)This work deals with the dispersion and stabilisation of nanosized Al2O3 and TiO2 particles in aqueous medium. The dispersing conditions were studied as a function of pH, dispersant content, solid loading and ageing. ... -
ZrSiO4/ZrO2 thermal barrier coatings produced by suspension plasma spraying
Elsevier (2024-01-01)Zircon has excellent thermal properties that make it a good candidate for thermal barrier coatings. Although it suffers decomposition at high temperature, significant amounts of zircon phase can be retained in the coatings ...