Buscar
Mostrando ítems 1-10 de 228
The calorimetric analysis as a tool for studying the aging hardening mechanism of a Cu-10wt%Ni-5.5wt%Sn alloy
(Elsevier, 2016)
The transformations of a Cu-10wt%Ni-5.5wt%Sn alloy as a function of the aging time in the range from room temperature up to 600 degrees C have been followed by Differential Scanning Calorimetry (DSC). The results obtained ...
Characterization of crystalline phases of (U,Er)O2 pellets by X-ray diffraction
(Associa????o Brasileira de Energia Nuclear, 2018)
Effect of periodicity on hardness and scratch resistance of CrN/NbN nanoscale multilayer coating deposited by cathodic arc technique.
(Amsterdam, 2015)
Nano-scaled multilayer CrN/NbN coatings were produced in an industrial-size cathodic arc physical vapor deposition (PVD) chamber, with three cathodes in alternate positions (Cr/Nb/Cr). Four multilayer NbN/CrN coatings were ...
Structural refinement, Raman spectroscopy, optical and electrical properties of (Ba1-xSrx)MoO4 ceramics
(Springer, 2015-11-01)
In this paper, structural refinement, Raman spectroscopy, optical and electrical properties of barium strontium molybdate [(Ba1-x Sr (x) )MoO4] ceramics with different (x) contents (x = 0; 0.1; 0.2; 0.3; 0.4; 0.5; 0.6; ...
Release of metals from synthetic Cr-goethites under acidic and reductive conditions: Effect of aging and composition
(Elsevier Science, 2012-04)
The dissolution mechanism of pure and Cr-substituted, synthetic goethites with different aging times, as well as the changes in morphology, crystallinity and structural changes, were investigated. The Cr-goethites were ...
Structural and ferroelectric properties of Pb1-xSrxTiO3 thin films
(Springer, 2005-02-01)
Strontium-modified lead titanate (PST) thin films with composition Pb1-xSrxTiO3 (0.10 < x &LE; 0.60) were grown on Pt/Ti/SiO2/Si substrates using a soft chemical process. The crystallization of the PST thin films was ...
Rietveld refinement, morphology and optical properties of (Ba 1-xSrx)MoO4 crystals
(2013-10-01)
In this article, the structural refinement, morphology and optical properties of barium strontium molybdate [(Ba1-x Sr x )MoO4 with x = 0, 0.25, 0.50, 0.75 and 1] crystals, synthesized by the co-precipitation (drop-by-drop) ...
Rietveld refinement, morphology and optical properties of (Ba 1-xSrx)MoO4 crystals
(2013-10-01)
In this article, the structural refinement, morphology and optical properties of barium strontium molybdate [(Ba1-x Sr x )MoO4 with x = 0, 0.25, 0.50, 0.75 and 1] crystals, synthesized by the co-precipitation (drop-by-drop) ...
Cobalt ferrite nanoparticles under high pressure
(American Institute Of Physics, 2015-08)
We report by the first time a high pressure X-ray diffraction and Raman spectroscopy study of cobalt ferrite (CoFe2O4) nanoparticles carried out at room temperature up to 17 GPa. In contrast with previous studies of ...