Selective black nickel coatings on zinc surfaces by chemical conversion |
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Authors: | PK Gogna KL Chopra |
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Affiliation: | Department of Physics, Indian Institute of Technology, Delhi, New Delhi-110029, India |
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Abstract: | An electrochemical conversion technique has been developed to deposit selective black nickel coatings of solar absorptance 0.90–0.94 and thermal emittance (at 100°C) 0.08–0.15 on galvanized iron, zincated, and zinc electroplated aluminium surfaces. The effect of electrochemical conversion parameters on the microstructure, optical and thermal properties and durability of the coatings has been established. |
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