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

doi:10.1117/12.856910

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

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation
DOIs	https://doi.org/10.1117/12.856910
Publication status	Published - 2010
Event	Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation - San Diego, CA, United States Duration: 2010 Jun 27 → 2010 Jul 2

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7739
ISSN (Print)	0277-786X

Conference

Conference	Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation
Country/Territory	United States
City	San Diego, CA
Period	10/6/27 → 10/7/2

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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10.1117/12.856910

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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 Article 77392N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7739). https://doi.org/10.1117/12.856910

Time-dependent deformation of surface geometry on light weight and thermally stable CFRP mirror in humid environment. / Arao, Yoshihiko; Koyanagi, Jun; Utsunomiya, Shin et al.
Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation. 2010. 77392N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7739).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Arao, Y, Koyanagi, J, Utsunomiya, S, Takeda, SI & 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, Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation, San Diego, CA, United States, 10/6/27. https://doi.org/10.1117/12.856910

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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.",

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AU - Kawada, Hiroyuki

PY - 2010

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N2 - 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.

AB - 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.

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KW - Dimensional stability

KW - Moisture absorption

KW - Surface geometry

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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