Selective electroplated chromium blacks.

摘要: The electrodeposition of chrome black selective surfaces on polished metal substrates has been studied by measuring the properties samples as a function plating time. Optical measurements show that in first 50 sec lossy dielectric film (apparently Cr2O3) 0.6-μm thickness is deposited. weights deposits and their emittances, well surface profiles samples, most (0.4–0.5 μm) this falls off between 50-sec 60-sec An absorbing layer chromium particles then deposited remaining to produce high solar absorptance characteristic these films. Calculations based particulate deposit linearly graded with air using recent theory McKenzie McPhedran are able reproduce similar those actually measured. It shown left under important obtaining optimum performance trade-off thermal emittance.