Претраживање
Приказ резултата 41-50 од 940
Synthesis of amorphous boron carbide by single and multiple charged boron ions bombardment of fullerene thin films
(Elsevier, 2007)
In this paper, results of structural modification of fullerene thin films by single and multiple charged boron ions (B+, B3+) are presented. The applied ion energies were in the range of 15–45 keV. The characterization of ...
Far infrared properties of bulk sintered and thin film Zn2SnO4
(Elsevier, 2007)
Room temperature far infrared reflectivity spectra of single phase spinel zinc-stannate thin films, prepared by rf magnetron sputtering on a glass substrate, and bulk sintered samples were measured. The sintered samples ...
Synthetic Activated Carbons for the Removal of Hydrogen Cyanide from Air
(Elsevier B.V., 2005)
Copper containing and copper free synthetic activated carbons produced from porous sulfonated styrene/divinylbenzene resin were studiedfor assessing the removal efficiency of HCN vapors from air. The pore structures and ...
Far infrared characterization of samarium doped single crystal PbTe
(Bucharest, Romania : National Institute of Research and Development for Optoelectronic, 2004)
Single crystal samples of lead telluride doped with samarium were produced using the
Bridgman method. Far infrared reflectivity spectra in the temperature range 10 K - 300 K are
presented and numerically analyzed using ...
Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method
(EDP Sciences, 2005)
Anisotropy in thermal and electronic properties for two directions of thermal wave propagation in the GaSe single crystal was investigated using photoacoustic (PA) frequency transmission techniques. First, the electric ...
Photoacoustic determination of thermal and electron transport properties of single crystal NiO
(EDP Sciences, 2005)
Thermal and electron transport properties of single crystal NiO were determined using the photoacoustic technique. NiO single crystals were prepared using the Verneuil method and were easily cleaved parallel to the (100) ...
Investigation of the thermal diffusivity of thick film NTC layers obtained with the photoacoustic method
(EDP Sciences, 2005)
The thermal diffusivity of thick NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic (PA) frequency transmission technique. The experimental PA amplitude and phase diagrams ...
Far infrared and transport properties of single crystal PBTE samples doped with Ce
(Bucharest : National Institute of Research and Development for Optoelectronic, 2000)
Single crystal samples of lead telluride doped with cerium were made using the Bridgman technique. Single crystals could be easily cleaved parallel to the (002) plane. Room temperature far infrared reflectivity was measured ...
Synthesis and characterization of poly(ester ether siloxane)s
(Wiley, 2006)
A series of novel thermoplastic elastomers based on ABA-type triblock prepolymers, poly[(propylene oxide)–(dimethylsiloxane)–(propylene oxide)] (PPO-PDMS-PPO), as the soft segments, and poly(butylene terephthalate) (PBT), ...
Yb3+ doped dyphillosilicates prepared by thermally induced phase transformation of zeolites
(Maik Nauka/Interperiodica/Springer, New York, 2007)
Yb3+-doped Ba and Sr diphyllosilicates (hexacelsians) have been synthesized using the Na form of LTA zeolite by ion-exchange procedure and thermal treatment. The crystal structures of both doped samples are refined and ...