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Proceedings Paper

Composite mirror replication: curing, coating and polishing
Author(s): Jack J. Massarello; Jake D. Hochhalter; Paul A. Fuierer; Arup K. Maji
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Paper Abstract

The quickest method for generating a lightweight composite optic is to replicate an optical quality glass tool onto a carbon fiber reinforced polymer (CFRP). However, the effects of fiber print-through create an unacceptable surface roughness on replicated CFRP mirrors. In order to mitigate fiber print-through, two methods of generating a polishable resin layer were investigated. The first method employs the application of resin films to the CFRP surface. The second, unconventional method generates a co-cured resin layer using a magnetic fiber migration approach. A final polishing step was used to attain optical quality surface features on all of the replicated specimens. Replicated resin films with thicknesses ≥ 0.25 mm sufficiently mitigate fiber print-through. Room temperature and high temperature cure resins were polished below 50 Å rms surface roughness (1 μm to 1mm bandwidth) or better. The magnetic fiber migration technique was suitable for eliminating fiber print-through. Replicated magnetic fiber laminates were polished to within specular quality as well.

Paper Details

Date Published: 18 August 2005
PDF: 10 pages
Proc. SPIE 5868, Optical Materials and Structures Technologies II, 58680O (18 August 2005); doi: 10.1117/12.614603
Show Author Affiliations
Jack J. Massarello, Air Force Research Lab. (United States)
New Mexico Tech (United States)
Jake D. Hochhalter, The Univ. of New Mexico (United States)
Paul A. Fuierer, New Mexico Tech (United States)
Arup K. Maji, The Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 5868:
Optical Materials and Structures Technologies II
William A. Goodman, Editor(s)

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