Now showing items 31-40 of 81
Photoluminescence of the Eu-doped thin film heterojunction GaAs/SnO2 and rare-earth doping distribution
(Iop Publishing Ltd, 2015-01-01)
Tin dioxide (SnO2) thin films doped with Eu3+, are deposited by the sol-gel-dip-coating process on top of GaAs films, which is deposited by resistive evaporation on glass substrate. This heterojunction assembly presents ...
Experimental analysis of heat recoveries with heat pipes operating in low inclination angle
Heat recovery devices are important in the optimization of thermal systems, since they can be used to reduce thermal losses to the environment. The use of heat pipes in these types of equipment can provide heat recoveries ...
STUDY of THE TURNING NICKEL BASE ALLOY PYROMET (R) 31V (SAE HEV8)
(Trans Tech Publications Ltd, 2011-01-01)
Considering the constant technological developments in the aeronautical, space, automotive, shipbuilding, nuclear and petrochemical fields, among others, the use of materials with high strength mechanical capabilities at ...
Glass-ceramic material from the SiO 2-Al 2O 3-CaO system using sugar-cane bagasse ash (SCBA)
Brazil is the world's largest producer of alcohol and sugar from sugarcane. Currently, sugarcane bagasse is burned in boilers to produce steam and electrical energy, producing a huge volume of ash. The major component of ...
Preparation and melting of Zr-1.0Nb alloy
Zirconium alloys have many applications in industry in services too harsh for stainless steels, nickel alloys or where a noteworthy improvement in service life may be achieved, by choosing zirconium alloys instead of other ...
Influence of spray-pyrolysis deposition parameters on the electrical properties of aluminium zinc oxides thin films
In the current work, we evaluate the influence of the processing parameters on the electrical properties of aluminium zinc oxide (AZO) thin films produced by airbrush spray-pyrolysis deposition technique. Spray-deposited ...