Time-dependent deformation of surface geometry on light weight and thermally stable CFRP mirror in humid environment

Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Shin Ichi Takeda, Hiroyuki Kawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

CFRP (Carbon Fiber Reinforced Plastics) is the ideal material for space based mirror due to its low thermal expansion, and high specific modulus. To expand the use of CFRP, we investigated the long-term stability of CFRP under humid environment. CFRP mirror was made as precise as possible by using special class of material and adopting particular design techniques. Dimensional stability of CFRP mirror was evaluated by nano-scale measurement. The factors which cause out-of-plane deformation of the mirror is discussed.

Original languageEnglish
Title of host publicationModern Technologies in Space- and Ground-Based Telescopes and Instrumentation
DOIs
Publication statusPublished - 2010 Sep 23
EventModern Technologies in Space- and Ground-Based Telescopes and Instrumentation - San Diego, CA, United States
Duration: 2010 Jun 272010 Jul 2

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7739
ISSN (Print)0277-786X

Conference

ConferenceModern Technologies in Space- and Ground-Based Telescopes and Instrumentation
CountryUnited States
CitySan Diego, CA
Period10/6/2710/7/2

Keywords

  • CFRP mirror
  • Dimensional stability
  • Moisture absorption
  • Surface geometry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Arao, Y., Koyanagi, J., Utsunomiya, S., Takeda, S. I., & Kawada, H. (2010). Time-dependent deformation of surface geometry on light weight and thermally stable CFRP mirror in humid environment. In Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation [77392N] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7739). https://doi.org/10.1117/12.856910