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Proceedings Paper

Study on production process of nickel-based x-ray grazing reflector
Author(s): Shulei Cao; Tao Ma
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Paper Abstract

According to the quality requirements of the nickel-phosphorus alloy coating in the soft X-ray grazing incidence cylindrical mirror, the purpose of this article is to introduce the method of chemically depositing nickel, which belongs to the mold replication method, to produce a super-smooth optical mirror. A nickel-phosphorus alloy layer was plated on an aluminum substrate, and then was fabricated into a super smooth surface by the single point diamond turning process and the fine polishing process. Then, a gold film was coated on the preformed nickel-phosphorus alloy layer. Another nickelphosphorus alloy was deposited on the gold film layer with better adhesion strength by an adapted the nickel deposited process. Then the outer layer of nickel-phosphorus alloy was demolded with the gold film. The target thickness of the deposited nickel-phosphorus alloys is 250±25 microns by the process described in this paper, which is different from the traditional method. The main formulation of the chemically deposited nickel-phosphorus alloy includes NiSO4·6(H2O), NaH2PO2·H2O, C6H8O7, CH3COONa. The testing results of the nickel-phosphorus alloy sheets was shown that the bonding force, corrosion resistance, porosity and other parameters were in line with the requirements for mirror production.

Paper Details

Date Published: 18 December 2019
PDF: 5 pages
Proc. SPIE 11341, AOPC 2019: Space Optics, Telescopes, and Instrumentation, 113410M (18 December 2019); doi: 10.1117/12.2542205
Show Author Affiliations
Shulei Cao, Soochow Univ. (China)
Tao Ma, Soochow Univ. (China)

Published in SPIE Proceedings Vol. 11341:
AOPC 2019: Space Optics, Telescopes, and Instrumentation
Suijian Xue; Xuejun Zhang; Carl Anthony Nardell; Ziyang Zhang, Editor(s)

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