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Proceedings Paper

Electroless nickel for optical applications
Author(s): Douglas L. Hibbard
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Paper Abstract

Electroless nickel (EN) is a nickel-phosphorus alloy which is currently used in the precision optics industry as a polishable surface layer on difficult-to-finish mirror substrate materials, such as beryllium. High performance applications for such reflective components range from commercial laboratory instruments to large spacebome telescopes to cryogenically cooled optical sensor systems. This paper presents a discussion of the fundamental processing parameters and control methodologies for the electrochemical growth process as well as the performance of the resulting EN coating. The coating performance evaluation will focus specifically on the influence of processing parameters on the EN composition and microstructure and the correlation between composition and critical material properties, such as thermal expansion, elastic modulus, density and hardness.

Paper Details

Date Published: 28 July 1997
PDF: 27 pages
Proc. SPIE 10289, Advanced Materials for Optics and Precision Structures: A Critical Review, 102890C (28 July 1997); doi: 10.1117/12.279806
Show Author Affiliations
Douglas L. Hibbard, Corning OCA (United States)

Published in SPIE Proceedings Vol. 10289:
Advanced Materials for Optics and Precision Structures: A Critical Review
Mark A. Ealey; Roger A. Paquin; Thomas B. Parsonage, Editor(s)

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