Mr. Fengdeng Liu Profile

Fengdeng Liu

at Tsinghua Univ

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Proceedings Article | 18 December 2014 Paper

Process of super-black shading material applied to the star sensor based on Ni-P alloys

Fengdeng Liu, Fei Xing, Yuelong Wu, Zheng You

Proceedings Volume 9295, 92950H (2014) https://doi.org/10.1117/12.2071802

KEYWORDS: Reflectivity, Plating, Scanning electron microscopy, Aluminum, Nickel, Star sensors, Corrosion, Etching, Nanotechnology, Oxidation

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Super-black materials based on Nanotechnology have very important applications in many science fields. Super-black materials which have been reported currently, although have excellent light-trapping properties, most of them need the use of sophisticated equipment , the long-time synthesis , high temperature environment and release flammable, explosive and other dangerous gases. So many kinds of problems have hindered the application of such super-black material in practice. This project had nano super-black material developed with simple equipment and process, instead of complicated and dangerous process steps in high temperature and high pressure. On the basis of literature research, we successfully worked out a set of large-area Ni-P alloy plating method through a series of experiments exploring and analyze the experimental results. In the condition of the above Ni-P alloy, we took the solution, which anodized the Ni-P alloy immersed in the non-oxidizing acid, instead of conventional blackening process. It`s a big break for changing the situation in which oxidation, corrosion, vigorous evolution of hydrogen gas in the process are performed at the same location. As a result, not only the reaction process decreased sensitivity to time error, but also the position of the bubble layer no longer located in the surface of the workpiece which may impede observing the process of reaction. Consequently, the solution improved the controllability of the blackening process. In addition, we conducted the research of nano super-black material, exploring nano-super-black material in terms of space optical sensor.

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