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See detailElectrochromic TiO2, ZrO2 and TiO2-ZrO2 thin films by dip-coating method
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al

in Materials Science & Engineering : B (2009), 165(3), 212-216

Sol-gel processing of TiO2, ZrO2 and mixed Ti/Zr oxide thin films has been studied as application of these coatings in electrochromic devices. Their structural transformations as a function of annealing ... [more ▼]

Sol-gel processing of TiO2, ZrO2 and mixed Ti/Zr oxide thin films has been studied as application of these coatings in electrochromic devices. Their structural transformations as a function of annealing temperatures were analyzed by XRD and FTIR techniques. Electrochromic behavior of the three kind materials was investigated by cyclic voltammetry and the basic electrochromic characteristics were determined. (c) 2009 Elsevier B.V. All rights reserved. [less ▲]

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See detailEffect of BaZrO3 additions on the microstructure and physical properties of melt-textured Y-123 superconducting materials
Cloots, Rudi ULg; Robertz, B.; Auguste, F. et al

in Materials Science & Engineering : B (1998), 53(1-2), 154-158

The effect of BaZrO3 additions on the microstructure and physical properties of melt-textured Y-123 have been investigated. The distribution of the 211 particles is strongly modified by the presence of ... [more ▼]

The effect of BaZrO3 additions on the microstructure and physical properties of melt-textured Y-123 have been investigated. The distribution of the 211 particles is strongly modified by the presence of such an additive. In fact, BaZrO3 is effective in reducing the size of the 211 particles. As a consequence, a strong interaction in terms of repulsion takes place between the 123 growth front and the 211 particles which are partially dissolved in the reactive liquid phase. New types of patterns are also reported in the microstructure of such materials and are related to the presence of BaZrO3 in the melt. [less ▲]

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See detailAC susceptibility data on Dy2O3 seeded randomly oriented Dy-123 mono domains melt-textured superconductor
Vanderbemden, Philippe ULg; Bougrine, Hassan ULg; Ausloos, Marcel ULg et al

in Materials Science & Engineering : B (1998), 53(1-2), 198-202

Dy-123 superconducting ceramics have been grows using small Dy2O3 single-crystals as seeds. Randomly oriented large mono-domains have been observed in the vicinity of the seeding single crystal. These ... [more ▼]

Dy-123 superconducting ceramics have been grows using small Dy2O3 single-crystals as seeds. Randomly oriented large mono-domains have been observed in the vicinity of the seeding single crystal. These domains are one order of magnitude greater in volume than the seed. The AC susceptibility versus temperature curves have been measured in a polycrystalline cubic sample for different orientations of the magnetic field with respect to the sample and for amplitudes up to 20 G. Three measuring coils, each parallel to one side of the sample, were used to investigate the anisotropy of the properties. Electrical resistance versus temperature and flux profiles at 77 K were also explored. The results show good grain connectivity. A non negligible part of the magnetic shielding is due to currents flowing inside the grains. (C) 1998 Elsevier Science S.A. All rights reserved. [less ▲]

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