Now showing items 51-60 of 107
Strain and vacancy cluster behavior of vanadium and tungsten-doped Ba[Zr(0.10)Ti(0.90)]O(3) ceramics
(American Institute of Physics (AIP), 2008-01-21)
Strain and vacancy clusters behavior of polycrystalline vanadium (V) and tungsten (W)-doped Ba[Zr(0.10)Ti(0.90)]O(3), (BZT:2%V) and (BZT:2%W) ceramics obtained by the mixed oxide method was evaluated. Substitution of V and ...
New tungstate fluorophosphate glasses
(Elsevier B.V., 2005-02-15)
\A new class of tungstate fluorophosphate glasses was identified in the NaPO3-BaF2-WO3 ternary system. The variation of several physical properties was determined with respect to chemical composition. Characteristic ...
Porous shell/dense core structures prepared in tungsten phosphate glass through template-free route
(Elsevier Science SaLausanneSuíça, 2010)
New materials based on modified synthetic Nb2O5 as photocatalyst for oxidation of organic contaminants
(Elsevier B.V., 2008-12-15)
Novel materials based on niobia (Nb2O5) destined to oxidize an organic compound in aqueous medium via heterogeneous photocatalysis after chemical modification were synthesized. Niobia was modified by the doping with ...
Nonlinear optical properties of tungsten lead-pyrophosphate glasses containing metallic copper nanoparticles
(SpringerNew York, 2013-12)
We have prepared heavy metal oxide glasses containing metallic copper nanoparticles with promising nonlinear optical properties which were determined by Zscan and pump-probe measurements using femtosecond laser pulses. For ...
Nonlinear Optical Properties of Tungsten Lead-Pyrophosphate Glasses Containing Metallic Copper Nanoparticles
We have prepared heavy metal oxide glasses containing metallic copper nanoparticles with promising nonlinear optical properties which were determined by Z-scan and pump-probe measurements using femtosecond laser pulses. ...
Antimony oxide based glasses
(Elsevier B.V., 2001-05-01)
Glass formation has been investigated in binary systems based on antimony oxide as the main glass former: (100-x)Sb2O3-xWO3, (5 < x < 65), (100 - x)Sb2O3-xSbPO(4), (5 < x < 80) and (100 - x)Sb2O3-x[Sb(PO3)(3)](n), (10 < x ...
Nitric oxide synthase-like dependent NO production enhances heme oxygenase up-regulation in ultraviolet-B-irradiated soybean plants
Heme oxygenase (HO) has antioxidant properties and is up-regulated by reactive oxygen species (ROS) in ultraviolet-B-irradiated soybean plants. This study shows that nitric oxide (NO) protects against oxidative damage and ...
Tungstate fluorophosphate glasses as optical limiters
(American Institute of Physics (AIP), 2002-06-15)
Nonlinear absorption measurements were performed on fluorophosphate glasses with high concentrations of tungsten oxide. Large two-photon absorption coefficients, alpha(2), were determined at 660 nm using nanosecond laser ...