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Synthesis of Y2SiO5 : Eu3+ nanoparticles from a hydrothermally prepared silica sol
(Journal of Alloys and Compounds, 2008)
In this paper, a novel route for the synthesis of Y2SiO5 (YSO) nanoparticles doped with Eu3+ ions. based on the use of a hydrothermally prepared silica sol as a chemical precursor and nanostructurign template, is presented. ...
Spectroscopy study of Bi4Ti3O12 obtained from mechanically activated Bi2O3-TiO2 mixtures
(Journal of Alloys and Compounds, 2008)
Bismuth titanate, Bi4Ti3O12 powders were prepared by mechanically assisted synthesis from their oxides. The diameter of obtained particles depends on time of milling. In order to understand the grain size effects on the ...
Nanopowders properties and sintering of CaMnO3 solid solutions
(Journal of Alloys and Compounds, 2008)
Pure and doped CaMnO3 were synthesized by applying modified glycine/nitrate procedure. The detailed structural characterization of prepared nanometric size powders, their properties, as well as the results on studying ...
Luminescence and structural properties of Gd2SiO5 : Eu3+ nanophosphors synthesized from the hydrothermal obtained silica sol
(Journal of Alloys and Compounds, 2006)
In this paper is given a synthesis of Gd2SiO5 (GSO) host lattice doped with Eu3+ ions using silica sol obtained by hydrothermal method as a main precursor for its nanostructure designing. X-ray diffraction, dynamic light ...
Fabrication of SiC by carbothermal-reduction reactions of mountain leather asbestos
(Journal of Alloys and Compounds, 2008)
Fibrous magnesium silicate (Mg6Si4O10(OH)s: Mountain leather asbestos) of Serbian origin was used as Si precursor for the Synthesis of SiC by carbothermal-reduction process. As a reducing agent, carbon (from various ...
Thermodynamics of gas phase carbothermic reduction of boron-anhydride
(Journal of Alloys and Compounds, 2006)
The upgrading of carbothermic synthesis of the boron-based non-oxide monolithic or composite ceramics powder depends upon the understanding of thermodynamics of carbothermic reduction (CR) of B2O3((I)). Analysis of relative ...
Microstructural characterization and computer simulation of conductivity in Si3N4-TiN composites
(Journal of Alloys and Compounds, 2004)
Si3N4-TiN ceramics sintered with Y2O3 and Y2O3 + Al2O3 as sintering aids and various content of TiN (0-50 wt.%) were investigated regarding their microstructural and electrical properties. Electroconductive composites were ...
Luminescence properties of SiO2 : Eu3+ nanopowders: Multi-step nano-designing
(Journal of Alloys and Compounds, 2008)
The structure and optical properties, the luminescence, of the spherical SiO2:Eu3+ particles have been discussed. These particles were formed using the combination of precursor hydro-thermal synthesis and its ultrasound ...
Properties of copper matrix reinforced with nano- and micro-sized Al(2)O(3) particles
(Journal of Alloys and Compounds, 2008)
The mixture of electrolytic copper powder with 5 wt.% of commercial Al(2)O(3) powder (average particle size: 15 and 0.75 mu m, respectively) and the inert gas atomized prealloyed copper powder (average particle size: 30 ...
The change of crystal symmetry and cation ordering in Li-Mg ferrites
(Journal of Alloys and Compounds, 2002)
In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) ...