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J. Vac. Sci. Technol. 21, 66 (1982); http://dx.doi.org/10.1116/1.571738 (4 pages)
Cylindrical magnetron co‐sputter etching of copper tubes with applications for solar selective absorbing surfaces
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Add to FacebookThe surfaces of copper tubes have been uniformly textured by co‐sputter etching in a cylindrical magnetron using titanium seed. The variation of surface morphology as a function of sputter etching conditions has been studied. Trends are similar to those observed in previous experiments on the sputter etching of plane copper sheet. The textured surfaces may be utilized as selective absorbing surfaces in the solar thermal collectors. Typical surfaces produced have absorptances α = 0.94 and emittance ϵ = 0.13 at 300 K.
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Metals, semimetals, and alloys
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0022-5355 (print)
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