Now showing items 1-10 of 805
Decreasing the time response of calibration-free pH sensors based on tungsten bronze nanocrystals
A considerable improvement of time constants of tungsten bronze pH sensors was achieved by decreasing the crystal size of the tungsten bronze previously reported by the authors. Experiments have been performed on the basis ...
Influence of Tungsten Dopant on Sintering and Curie Temperatures of Ba(Zr0.10Ti0.90)O-3 Ceramics
(Taylor & Francis Ltd, 2008-01-01)
Ba(Zr0.10Ti0.90)O3 (BZT10) and W+ 6 substituted BZT ceramics (BZT10:W) were prepared by mixed oxide method. The effect of W+ 6 addition in the BZT was evaluated by X-ray diffraction (XRD), dilatometer analysis, microstructural ...
Tungsten oxide nanowire on copper surfaces: A DFT model
(Royal Society of Chemistry, 2016-09)
We studied a model of a one dimensional tungsten oxide nanowire on a reconstructed Cu(110) surface by density functional theory calculations. The effect of oxygen vacancies on the electronic structure was analyzed (DOS). ...
Effects of tungsten carbide thermal spray coating by HP/HVOF and hard chromium electroplating on AISI 4340 high strength steel
In cases of decorative and functional applications, chromium results in protection against wear and corrosion combined with chemical resistance and good lubricity. However, pressure to identify alternatives or to improve ...
Tungsten oxide nanoparticles grown by condensation in gas using domestic appliances
We report on the preparation of WO3 nanostructures using tungsten wire and iron wool in a domestic microwave oven. Pure WO3 nanoparticles were octahedral or rhombohedral while iron containing nanoparticles were spheroidal. ...
Non-isothermal kinetic of oxidation of tungsten carbide
Tungsten carbide, WC, has shown dissimilar thermal behavior when it is heated on changeable heating rate and flow of oxidant atmosphere. The oxidation of WC to WO3 tends to be in a single and slow kinetic step on slow ...
Atomization of DY and EU in a tungsten coil furnace: aplication in nutrional studies.
(In: ANNUAL CONFERENCE OF THE FEDERATION OF ANALYTICAL CHEMISTRY AND SPECTROSCOPY SOCIETIES, 25., 1998, Austin, Texas. Proceedings... Austin:FACSS, 1998. p.189., 2015)
Interstitial Boron in Tungsten: Electronic Structure, Ordering Tendencies, and Total Energy Calculations
(International Journal of Quantum Chemistry, 1999)