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Interface formation of nanostructured heterojunction SnO 2:Eu/GaAs and electronic transport properties
(2013-02-15)
Thin films of tin dioxide (SnO2) are deposited by the sol-gel-dip-coating technique, along with GaAs layers, deposited by the resistive evaporation technique. The as-built heterojunction has potential application in ...
Interface formation of nanostructured heterojunction SnO 2:Eu/GaAs and electronic transport properties
(2013-02-15)
Thin films of tin dioxide (SnO2) are deposited by the sol-gel-dip-coating technique, along with GaAs layers, deposited by the resistive evaporation technique. The as-built heterojunction has potential application in ...
Kinetics of isothermal decomposition in polycrystalline β CuAlBe alloys
(Elsevier, 2010-01)
The kinetics of the microstructural evolution of the metastable β phase during isothermal aging in a Cu-22.60Al-3.26Be (at%) polycrystalline shape memory alloy has been studied by electrical resistivity measurements and ...
Aplicação da técnica de caminhamento elétrico em area contaminada por derivados de petróleo
(2006-07-01)
Geophysical methods are useful technics of geological investigation, thoroughly employed to diagnosis and monitoring contaminated areas, in conjunction with direct techniques of investigation such as chemical analyses. ...
Resistividade elétrica de concretos de cimento Portland branco e elevados teores de escória de alto forno
(Universidade Federal de Santa MariaBREngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia Civil, 2008-03-03)
The electrical resistivity is an important concrete property that allows evaluating the access facility of aggressive agents before the corrosion process begins and estimates the velocity of the same process after it begun. ...
Alterations in electrical resistivity of sandy soil in controlled experiment by infiltration of stillageAlterações na resistividade elétrica do solo arenoso em experimento por infiltração de vinhaça controlado
(2019-01-01)
The sugar and alcohol sector represents one of the most profitable economic activities in Brazil, being ethanol one of the main products. Among the residues related to the production of ethanol, it is highlighted the ...
SnO2 dense ceramic microwave sintered with low resistivity
(2012)
The Hall-Héroult process is used for alumina reduction by the use of graphite anodes even though it involves a high emission of carbon dioxide (CO2) and several other organic compounds. Proposals have been made aiming at ...
Magnetoresistance, temporal evolution, and relaxation of the electrical resistivity in the re-entrant semiconducting La0.80Ba0.20CoO3 perovskite
(Materials Research Society, 2011-01)
We report here a study on the electrical and magnetic properties of La1-xBaxCoO3 in the re-entrant semiconducting region (x = 0.20). We find that in this material: (i) the insulator-metal-insulator sequence is unstable and ...
Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor
(Elsevier Science, 2011-03)
Different chemical reagents (phosphoric acid, boric acid, ammonium citrate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate and trisodium phosphate) were employed to develop activated ...