2014
DOI: 10.1016/j.apsusc.2014.03.122
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The use of trivalent chromium bath to obtain a solar selective black chromium coating

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Cited by 26 publications
(20 citation statements)
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“…The cathode (substrate) and anode were disposed within the bath at a distance of 25 mm. The current density during plating was 0.4 A cm −2 and the temperature was 20 • C. As it was mentioned before [11], initially the chemical composition of the plating bath (Table 1) and working conditions were designed taking into account the degree of blackness, homogeneity and adhesion of the coating. The use of room temperature (18-25 • C) in black chromium plating is a matter of common knowledge.…”
Section: Methodsmentioning
confidence: 99%
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“…The cathode (substrate) and anode were disposed within the bath at a distance of 25 mm. The current density during plating was 0.4 A cm −2 and the temperature was 20 • C. As it was mentioned before [11], initially the chemical composition of the plating bath (Table 1) and working conditions were designed taking into account the degree of blackness, homogeneity and adhesion of the coating. The use of room temperature (18-25 • C) in black chromium plating is a matter of common knowledge.…”
Section: Methodsmentioning
confidence: 99%
“…It was found experimentally that the percentage of zinc in black chromium little by little increases with current density and the ratio Cr/Zn slightly decreases, whereas this ratio increases with temperature (about 0.08 per 1 • C). Taking into account the results of corrosion tests and solar selective characteristics of the black chromium coatings [11], the optimum plating conditions (i c = 0.4 A cm −2 and t = 20 • C) were selected as a compromise between the efficiency and deposit quality.…”
Section: Methodsmentioning
confidence: 99%
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“…Contudo, as pesquisas relativas a eletrodeposição de cromo negro apresentam uma certa limitação em termos do material a ser utilizado como substrato, pois em sua maioria é utilizado aço, porém, é possível encontrar na literatura algumas pesquisas com cobre e níquel como opção de superfície a ser revestida (BAYATI et al, 2005;JAFARI;ROZATI, 2011). No entanto, as análises, aplicadas sobre esses, são bastante restritas, como é o caso do trabalho de Surviliene et al (2014) Lee (2007), apesar de ter obtido imagens em duas e três dimensões da superfície dos filmes de cromo negro em substratos de cobre, utilizou cobre revestido com níquel. Dessa forma, o presente trabalho teve como objetivo contribuir para a avaliação dos níveis de absorção de SSA's de cromo negro depositadas sobre substrato de cobre puro em função dos parâmetros de eletrodeposição tempo e distância ânodo-cátodo, e observar a influência da microestrutura do filme em relação aos níveis de absorção obtidos.…”
Section: Introductionunclassified
“…Por meio da utilização da mesma técnica, Surviliene et al (2014) produziram superfícies seletivas de cromo negro em substratos de aço utilizando 40 A/dm² de densidade de corrente e 2,5 cm de distância ânodo-cátodo. Essas superfícies apresentam níveis de absorção entre 98,8-99,3% na faixa de comprimento de onda entre 350-1100 nm e espessura de 3,2 µm.…”
Section: Introductionunclassified