Now showing items 1-10 of 73
Far infrared reflectance of sintered Zn2TiO4
(Springer Science+Business Media, 2008)
Far infrared reflectivity spectra of single crystal PbTe doped with Bi were measured and numerically analyzed using a fitting procedure based on a modified plasmon-phonon interaction model with two additional oscillators ...
Preparation of Cobalt Substituted Hydroxyapatite Nanoparticles by Hydrothermal Treatment
Poster presented at the 10th Conference of the Materials Research Society of Serbia - YUCOMAT 2008, Herceg Novi, Montenegro, September 8-12, 2008.
Analysis of nonisothermal sintering of zinc-titanate ceramics doped with MgO
The aim of this work is to analyze nonisothermal sintering of zinc titanate ceramics doped with MgO obtained by mechanical activation. Mixtures of ZnO, TiO 2, and MgO (0, 1.25, and 2.5%) are mechanically activated for 15 ...
A detailed XRD and FTIR analysis of Bi2O3 doped ZnO-SnO2 ceramics
(Faenza : Institute of Science and Technology for Ceramics, National Research Council, 2008)
ZnO-SnO2 ceramics were prepared with a traditional powder mixed oxide route by mixing starting powders of ZnO and SnO2 in the molar ratio 2:1 and adding small amounts (0.5; 1.0; and 1.5 molar%) of Bi 2O3. These mixtures ...
Morphological changes of poly(DI-lactide-co-glycolide) nano-particles containing ascorbic acid during in vitro degradation process
Poly(dl-lactide-co-glycolide) powder composed of uniform particles with the mean particle size in the range of 110-170 nm was obtained from commercial granules. Ascorbic acid in different concentrations was encapsulated ...
Far infrared reflectivity spectra of lead-telluride doped with Ytterbium
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 ...
Far infrared properties of iron doped single crystal PbTe
(Măgurele : National Institute of Research and Development for Optoelectronics, 2008)
Far infrared reflectivity spectra of single crystal PbTe samples doped with 0.2 at% Fe were measured in the temperature range between 10 K and 300 K. These spectra show very sharp and narrow dips below 120 cm-1. The ...
Ultrasound synthesis of poly-dl-lactide-co-glycolide/hydroxyapatite core-shell nano-spheres
(8th World Biomaterials Congress 2008, WBC 2008; Amsterdam; Netherlands; 28 May 2008 - 1 June 2008, 2008)
Ultrasonic de-agglomeration of barium titanate powder
(Ultrasonics Sonochemistry, 2008)
BaTiO3 (BT) powder, with average particle size of 1.4 mu m, was synthesized by solid-state reaction. A high-intensity ultrasound irradiation (ultrasonication) was used to de-agglomerate micro-sized powder to nano-sized ...
Photoacoustic characterization of natural mineral pyrite (FeS2)
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 ...