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윤수인,노동택,노지현 부산대학교 물성연구소 1982 물성연구소연구논문집 Vol.1 No.-
The nickel-zinc-sulfide complex known as nickel black is produced on nickel and galvanized iron bases by the electro-deposition method. The nickel-black-on-nickel selective surfaces give an absorptance of 0.91 and emittance of 0.40. Whereas the nickel-black-on-galvanized-iron selective surfaces give an absorptance of 0.95 and emittance of 0.30. The copper black coatings produced on an aluminum base by using dipping and baking techniques give an absorptance of 0.94 and emittance of 0.42 An absorptance of 0.3 can often be obtained with almost no effect on the emittance of the base; however, by the time absorptance has been raised to 0.9, by using thicker lauyers or other changes in the recipe, the emittance has risen considerably. According to the detailed analysis of the efficiency of the flat-plate solar heat the collector, selective surfaces show better efficiency than the nonselective surfaces.