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Приказ резултата 11-20 од 54
Morphology investigation of mechanically activated ZnO-SnO2 system
(Elsevier, 2008)
Powder mixtures of zinc oxide and tin oxide in the molar ratio, ZnO:SnO2 = 2:1, were mechanically activated in a planetary ball mill in the time intervals of 0-160 min. The adsorption-desorption isotherms, specific surface ...
Crystal structure of hydroxyapatite nanorods synthesized by sonochemical homogeneous precipitation
(Crystal Growth and Design, 2008)
Using a homogeneous precipitation method in an ultrasound field, we synthesized nanosized, platelike hydroxyapatite (HAp). The internal structure of these platelike formations consists of specifically oriented and laterally ...
Biodegradable composites based on nanocrystalline calcium phosphate and bioresorbable polymers
(Taylor & Francis, 2008)
Nanocrystalline calcium phosphates (NC CP) are suitable for the synthesis of CP/bioresorbable polymer composite biomaterials for the application in bone engineering. There are different forms of NC CP/ bioresorbable polymers ...
Mechanochemical synthesis of nanocrystalline titanium monoxide
(Elsevier, 2008)
Nanocrystalline cubic titanium monoxide, TiOx (0.92 < x < 1.19), with mean crystallite size of ≈ 6 nm, was synthesized by mechanochemical treatment of Ti and TiO2 (rutile) powder mixtures with molar ratios of 1:1, ...
Structural and electrical properties of the 2Bi2O3·3ZrO2 system
(Journal of Solid State Chemistry, 2008)
Powder mixtures of α-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The ...
LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation
(Elsevier, 2008)
Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) ...
Influence of mechanical activation on MgO-TiO2 system
(Belgrade : Institute of Technical Sciences of SASA, 2008)
In this paper the influence of mechanical activation on MgO-TiO2 system has been investigated. Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 0, 5, 10, 20, 40, 80 and 120 ...
Far infrared study of local impurity modes of Gd doped PbTe
(Elsevier, 2008)
Single crystal samples of lead telluride doped with Gd were grown using the Bridgman method. Far infrared reflectivity spectra in the temperature range from 10 K to 300 K were measured. The experimental diagrams were ...
Far infrared reflectivity spectra of lead-telluride doped with Ytterbium
(Elsevier, 2008)
Single crystal samples of lead-telluride doped with Ytterbium were made using the Bridgman method. Far infrared reflectivity spectra in the temperature range from 10 to 300 K were measured. Analysis of the experimental ...
Photoacoustic characterization of natural mineral pyrite (FeS2)
(Springer, 2008)
A single p-type crystal of the mineral, pyrite (FeS2) was characterized photoacoustically using the transmission detection configuration. Photoacoustic (PA) amplitude and phase spectra were measured using a specially ...