Претраживање
Приказ резултата 81-89 од 89
Modeling of densification process for particle reinforced composites
(Journal of Alloys and Compounds, 2009)
It is a well known fact that behavior of materials during consolidation at high temperatures is a very complex issue. Each mechanism that promotes densification, depends on a large number of parameters in many different ...
A model for the quasi 60 K plateau in the YBa2Cu3O6+x high-T-c compound
(Journal of Alloys and Compounds, 2013)
The 60 K plateau of the YBa2Cu3O6+x high-T-c superconducting compound has traditionally been known as a horizontal section in its T-c(x) characteristics within which the critical temperature maintains at a constant level ...
Highly crystalline superparamagnetic iron oxide nanoparticles (SPION) in a silica matrix
(Journal of Alloys and Compounds, 2012)
We report on magnetic properties of iron oxide nanoparticles in a silica matrix synthesized by the sol-gel method. The sample is characterized by using X-ray powder diffractometer (XRPD), transmission electron microscopy ...
Combustion synthesis as a novel approach in preparation of polycrystalline Y2Cu2O5
(Journal of Alloys and Compounds, 2013)
Polycrystalline samples of Y2Cu2O5 were for the first time sintered from precursors obtained by two combustion routes - the glycine-nitrate method (sample S1) and a modified self-propagating high-temperature synthesis ...
Magnetic properties of nanosized mixed valent manganites CaMnO3 and Ca0.7La0.3Mn1-xCexO3 (x = 0; 0.2)
(Journal of Alloys and Compounds, 2007)
Nanosized mixed valent perovskite manganites CaMnO3, La doped Ca0.7La0.3MnO3 (S1) and Cc co-doped Ca0.7La0.3Mn0.8Ce0.2O3 (S2) samples were synthesized by the modified glycine-nitrate procedure. Their magnetic properties ...
Crystal structure and magnetic properties of Y-2(Cu1-xMgx)(2)O-5 obtained by SHS method
(Journal of Alloys and Compounds, 2014)
The single-phase polycrystalline samples of Y-2(Cu1-xMgx)(2)O-5, x = 0.0, 0.05, 0.15 were successfully synthesized by a modified self-propagating high temperature synthesis. Effects of Mg+2 substitution for Cu+2 in ...
Surface morphology modifications of titanium based implant induced by 40 picosecond laser pulses at 266 nm
(Journal of Alloys and Compounds, 2010)
Surface modification of titanium based implant Ti6Al4V induced by an Nd:YAG laser operating at a wavelength of 266 nm, with pulses of 40 ps, is presented. It is shown that the laser beam at fluences 0.96J cm(-2) and 0.29J ...
Polymer-assisted sol-gel synthesis and characterization of Zn2SiO4:Eu3+ powders
(Journal of Alloys and Compounds, 2009)
The synthesis of nanophosphors for various applications and the improvement of their working parameters constitute one of the most topical problems of nowadays technology. Zinc-silicate has been extensively used as host ...
Preparation and characterization of chrome doped sphene pigments prepared via precursor mechanochemical activation
(Journal of Alloys and Compounds, 2013)
Mechanical activation of precursors has been used for the preparation of Cr-doped sphene ceramic pigments (CaTi1-yCrySiO5). Ceramic material has been prepared from a powder mixture of CaCO3, TiO2, SiO2 and Cr(NO3)center ...