Electrolytic Bath
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Produção e caracterização de revestimentos de ligas metálicas Cu-Sn em banho eletrolítico contendo glicina: ensaios preliminares
RESUMO Os problemas relacionados à corrosão são frequentes, podendo ocorrer nas mais variadas áreas, tais como, nas indústrias química, petroquímica, naval, de construção civil e automobilística, dentre outros setores produtivos. Portanto, métodos para prevenir a corrosão devem ser empregados para evitar a perda de materiais e o uso de revestimen
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Influence of the anodizing process variables on the acidic properties of anodic alumina films
Abstract In the present work, the effect of the different variables involved in the process of aluminum anodizing on the total surface acidity of the samples obtained was studied. Aluminum foils were treated by the electro-chemical process of anodic anodizing within the following variable ranges: concentration = 1.5-2.5 M; temperature = 303-323 K; voltage =
Braz. J. Chem. Eng.. Publicado em: 2017-10
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3. Electrochemical study about zinc electrodeposition onto GCE and HOPG substrates
We carried out an electrochemical study about zinc electrodeposition onto GCE and HOPG substrates from an electrolytic plating bath containing 0.01M ZnSO4 + 1M (NH4)2SO4 at pH 7. Under our experimental conditions the predominant chemical species was the complex [ZnSO4(H2O)5]. The chronoamperometric study showed that zinc electrodeposition follows a typical 3
Química Nova. Publicado em: 2011
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4. Tunning of the Filter of Kalman for indirect measurement of the variable of state in the electrolytic bath / Sintonia do filtro de Kalman para medição indireta das variáveis de estado no banho eletrolitico
A tunning model for Kalman filter based on QR duality principle is presented to measure the state variables of the electrolytic bath in aluminium production cells. The main goal is to establish a set of filter gains that better represents the percentual of alumina in the bath. The filter bandwidth tunning is performed by increasing or decreasing the filter b
Publicado em: 2008
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5. Avaliação do efeito da concentração de carbonato na eletrodeposição de cobre sobre discos de aço-carbono
Mild steel blankets were covered with electrolytic copper thin layer, from cyanide bath, being evaluated the influence of the carbonate concentration in the physiochemical properties of those deposits. The cell voltage decreased as the current intensity decreased, but the adherence of the deposit was not enhanced, showing that the increment of carbonate conc
Química Nova. Publicado em: 2008
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6. Controle automático de adição de alf3 em cubas de redução de alumínio, usando lógica fuzzy / Automatic control of addition of alf3 in cubas of aluminum reduction, using logical fuzzy
This work describes a data analysis system, which generates an intelligent aluminum fluoride (AlF3) addition strategy for electrolytic cells. The project is based on Fuzzy logic concepts, wherein the knowledge accumulated by the process specialist is translated in a qualitative manner into a set of linguistic rules such as: IF
THEN . The use Publicado em: 2005
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7. Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
Optimization and control of an electrodeposition process for depositing boron-containing amorphous metallic layer of cobalt-molybdenum alloy onto a cathode from an electrolytic bath having cobalt sulfate, sodium molybdate, boron phosphate, sodium citrate, 1-dodecylsulfate-Na, ammonium sulfate and ammonia or sulfuric acid for pH adjustments has been studied.
Brazilian Journal of Chemical Engineering. Publicado em: 2000-12
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8. Electrolytic transport through a synthetic nanometer-diameter pore
We have produced single, synthetic nanometer-diameter pores by using a tightly focused, high-energy electron beam to sputter atoms in 10-nm-thick silicon nitride membranes. Subsequently, we measured the ionic conductance as a function of time, bath concentration, and pore diameter to infer the conductivity and ionic mobility through the pores. The pore condu
National Academy of Sciences.
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9. Studies of brain structures involved in diffuse noxious inhibitory controls in the rat: the rostral ventromedial medulla.
1. Previous electrophysiological, pharmacological and anatomical evidence had suggested a possible participation of rostral ventromedial medulla (RVM) in the supraspinal part of the loop underlying diffuse noxious inhibitory controls (DNICs). In order to test this hypothesis, two experimental series were performed during which DNICs were compared in control