AIMPLAS, AIMME e ITC colaboran en la aplicación de nanotecnología en distintas superficiesAIMPLAS, AIMME e ITC colaboran en la aplicación de nanotecnología en distintas superficies

A través del Proyecto NANOSURF, tratan de compartir y transferir conocimientos entre los sectores del plástico, metal y cerámica en la modificación de superficies empleando nanotecnología para ampliar las aplicaciones y las funcionalidades entre todas estas industrias. NANOSURF cuenta con la financiación del IVACE y los Fondos FEDER de Desarrollo Regional.  El Instituto de Tecnología Cerámica (ITC) participa en el proyecto NANOSURF: “Técnicas de modificación de superficies mediante […]

Production of Al2O3-Stabilized Tetragonal ZrO2 Nanoparticles for Thermal Barrier CoatingProduction of Al2O3-Stabilized Tetragonal ZrO2 Nanoparticles for Thermal Barrier Coating

Authors: Karthik, A. Manivasakan, P. Arunmetha,S. Yuvakkumar,R. Rajendran, V. Source: Int. j. app. ceram. technol. , 10 [6] 887–899 , 2013 Al2O3-stabilized tetragonal ZrO2 nanoparticles were obtained through hot-air spray pyrolysis and characterized after postsynthesized treatments. The produced nanoparticles were 26 nm in size with surface area of 59 m2/g. A multilayer thermal barrier coating of nanostructured Al2O3-ZrO2-embedded silicate was applied to the mild steel (EN3) specimen using spin-coating […]

New innovative stable titania nanopowderNew innovative stable titania nanopowder

Indian researchers (Theivasanthi and Alagar) have prepared stable titania nanopowder in a novel, easy method. The group, from the Centre for Research and Post Graduate Department of Physics at Ayya Nadar Janaki Ammal College, comments: “To our best knowledge, the adopted physical grinding method is very useful one for mass production of titania nanopowder in a short span of time.” The researchers have published a […]

Preparation and properties of nanostructured ceramic foam from kaolinitePreparation and properties of nanostructured ceramic foam from kaolinite

Autores: P.Ptácek, K. Langb, F. Šoukala, T. Opravila, L. Tvrdíkb, R. Novotnýa Fuente: Powder Technol. , in press , 2013 The effective method for preparation and stabilization of nanostructured ceramic foam from kaolinite is described in this work. The technique is based on the redistribution of particles from original kaolinite aggregates and on the formation of solid framework of aqueous foams stabilized by surfactants. This process is spontaneous and […]

Viscosity of nanoscale water affected by containerViscosity of nanoscale water affected by container

Water pours into a cup at about the same rate regardless of whether the water bottle is made of glass or plastic. But at nanometer-size scales for water and potentially other fluids, whether the container is made of glass or plastic does make a significant difference. A new study shows that in nanoscopic channels, the effective viscosity of water in channels made of glass can […]

Fabrication and technological properties of nanoporous spinel/ forsterite/ zirconia ceramic compositesFabrication and technological properties of nanoporous spinel/ forsterite/ zirconia ceramic composites

Authors: Wahsh, M.M.S. Khattab, R.M. Khalil, ,N.M. Gourauc, F. Hugec, M. Chotar, T. Source: Materials & Design , in press , 2013 In this work, nanoporous spinel/ forsterite/ zirconia ceramic composites were fabricated at 1600°C for 2 h. The influence of zirconia content (up to 10 mass%) on the technological properties, nano pores formation, phase compositions, microstructure and thermal diffusivity of nanoporous ceramic composites was investigated. Nano spinel and […]

Inkjet printing of 200 nm monodisperse carbon nanoparticles: From nanoparticles synthesis to smart ink formulationInkjet printing of 200 nm monodisperse carbon nanoparticles: From nanoparticles synthesis to smart ink formulation

Authors: Vie ,R. Blayac ,S. Drahi ,E. Berthon-Fabry, S. Source: NSTI-Nanotech 2013 , 2013 Carbon nanoparticles can be obtained by the pyrolysis of thermoset resorcinol (R) and formaldehyde (F) copolymers nanopheres. In comparison with carbon black nanoparticules commonly proposed by chemical products suppliers, their shape is more regular and well defined. In addition R/F carbon nanoparticle can be synthetized with a very narrow granular spreading. Three different synthesis […]

Interaction of PMANa+ with ZnO and Al2O3 nanopowders: Adsorption, stability and rheological behaviorInteraction of PMANa+ with ZnO and Al2O3 nanopowders: Adsorption, stability and rheological behavior

Authors: Bouhameda, H. Bakloutia, S. Bossisb,G. Source: Powder Technol. , Volume 245, September 2013, Pages 273–280, 2013 Commercial Al2O3 and ZnO nanoparticles were modified by low molecular weight polymethacrylic acid sodium salt (PMANa+, Mn = 4000) in aqueous system. The effect of PMANa+ on the adsorption behavior, electrokinetic and rheological properties of Al2O3 and ZnO suspensions was investigated. Adsorption isotherms showed that polymer interaction depended not only on […]

Researchers Use Nano-Structured Iron Oxide and Water to Produce Solar Hydrogen BubblesResearchers Use Nano-Structured Iron Oxide and Water to Produce Solar Hydrogen Bubbles

EPFL and Technion scientists just discovered the champion structure to achieve this In the quest for the production of renewable and clean energy, photoelectrochemical cells (PECs) constitute a sort of a Holy Grail. PECs are devices able of splitting water molecules into hydrogen and oxygen in a single operation, thanks to solar radiation. «As a matter of fact, we–ve already discovered this precious chalice, says […]

Moth-Inspired Nanostructures Take the Color out of Thin FilmsMoth-Inspired Nanostructures Take the Color out of Thin Films

Inspired by the structure of moth eyes, researchers at North Carolina State University have developed nanostructures that limit reflection at the interfaces where two thin films meet, suppressing the «thin-film interference» phenomenon commonly observed in nature. This can potentially improve the efficiency of thin-film solar cells and other optoelectronic devices. Thin-film interference occurs when a thin film of one substance lies on top of a […]

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