β Scribed by Hsing-Hsiang Shih; Yu-Chieh Huang
No coin nor oath required. For personal study only.
Research in obtaining the darkest shade of black color on the aluminum surface is challenging but worthwhile. The process starts with forming an anodic film on aluminum, then obtaining the darkest shade of black color using an electrolytic method. The coloring impact factors such as electrolyte concentration, bath temperature, voltage, and time duration were all investigated in the research.
The conditions to obtain the darkest shade of black coating with approximately 0.03 of minimum visible light reflectivity and 17.6 of minimum L-value include a mixed solution of 35 g/L copper sulfate, 10 g/L sulfuric acid and 2 g/L sodium sulfate, at a temperature of 40 β’ C with a voltage of 30 V and a duration of 50 min. The research has found that the bath temperature is the most important coloring factor. The film has a stronger anti-corrosion ability when colored at a low bath temperature.
π SIMILAR VOLUMES
The influence of PtRu surface alloy formation and of coadsorbed CO on the adsorption/desorption characteristics of hydrogen on bimetallic PtRu surfaces was investigated by temperature programmed desorption, using a 40% Pt containing PtRu surface alloy pseudomorphic on a Ru(0 0 0 1) surface with an a