Now showing items 1-10 of 222
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 ...
Modeling boron separation from water by activated carbon, impregnated and unimpregnated
(Roma : Società chimica italiana, 2000)
The sorption of boron from boric acid water solution by impregnated activated carbon has been studied Barium, calcium, mannitol, tartaric acid and citric acid were used as chemical active materials. All processes were ...
Microstructure and dielectric properties of BaTiO3 doped with Er2O3, Yb2O3 and Ho 2O3
(Faenza : ISTEC-CNR, 2008)
Doped barium-titanate ceramic is attracting much interest for its application as resistors with a positive temperature coefficient of resistivity (PTCR), multilayer ceramic capacitors (MLCC), thermal sensors etc. In this ...
Effect of chemisorbed carbon monoxide on Pt/C electrode on the mechanism of the hydrogen oxidation reaction
The influence of poisoning of Pt catalyst by CO on the kinetics and mechanism of H2 oxidation reaction (HOR) at Pt/C electrode in 0.5 mol dm-3 HClO4, saturated with H2 containing 100 ppm CO, was examined with rotating disc ...
Far infrared spectroscopy of Pb0.85Sn0.15Te alloy doped with Ni
(Carl Hanser Verlag, 2008)
Far infrared reflectivity spectra of single crystal Pb 0.85Sn0.15Te doped with Ni were measured in the temperature range between 10 K and 300 K. Analysis of the experimental spectra was made using a fitting procedure based ...
Formation of magnesium titanates
The paper examines the phase formation in the mechanochemical treatment and subsequent annealing of TiO 2 and MgO mixtures. It is established that the MgTiO 3 phase forms during annealing of the above powder mixtures at ...
Thermal diffusivity of sintered 12CaO×7AI2O3
The thermal diffusivity and free carrier diffusion coefficient of 12CaO×7 Al2O3 (C12A7) sintered for different times in air or hydrogen followed by treatment with UV light were determined from photoacoustic phase and ...
Tailored preparation of nano and micro composites as new controlled bone drug delivery systems
(Faenza : ISTEC-CNR, 2009)
Method of homogenous sonochemical principle for obtaining controlled forms of micro/nano particles of desired shapes, size and distribution, and solvent/nonsolvent method for obtaining spherical particles of polymer or ...
Hydrothermal synthesis of LiFePO4 powders as cathode material for li-ion batteries
(Belgrade : Institute of Technical Sciences of SASA, 2009)
Phospho-olivine LiFePO4 have been intensively studied as lithium insertion cathode materials for next generation of Li-ion secondary batteries. LiFePO4 has an interesting theoretical specific capacity of about 170 mAhg-1, ...
Influence of ZnO specific surface area on its sintering kinetics
(Киев : Украинское материаловедческое общество; Националная академия наук Украины; националниый технический университет Украины „Киевский политехнический институт“, 2008)
Paper presented at the conference Материаловедение тугоплавких соединений: достижения и проблемы, Киев, Украина, 27-29 мая 2008.