SEM and EDS Characterisation of Layering TiOx Growth onto the Cutting Tool Surface in Hard Drilling Processes of Ti-Al-V Alloys

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Hole-Phonon Relaxation and Photocatalytic Properties of Titanium Dioxide and Zinc Oxide: First-Principles Approach

First-principles calculations for the temporal characteristics of hole-phonon relaxation in the valence band of titanium dioxide and zinc oxide have been performed. A first-principles method for the calculations of the quasistationary distribution function of holes has been developed. The results show that the quasistationary distribution of the holes in TiO2 extends to an energy level approximately 1eV below the top of the valence band. This conclusion in turn helps to elucidate the origin of the spectral dependence of the photocatalytic activity of TiO2. Analysis of the analogous data for ZnO shows that in this material spectral dependence of photocatalytic activity in the oxidative reactions is unlikely.

Multicapas de FeNi/Ti sobre sustratos rígidos y flexibles para sensores de magnetoimpedancia especializados

En este trabajo se han estudiado las propiedades magnéticas de las multicapas de FeNi/Ti depositadas en sustrato rígido y flexible. Asimismo, se ha analizado la magnetoimpedancia gigante (GMI) y se ha estuadiado un prototipo de biosensor GMI utilizando ferrogeles.