Space Environmental Testing of Lightweight and High-Precision Carbon Composite Mirrors (ExHAM-CFRP Mirror) - 12.31.14
ISS Science for Everyone
Science Objectives for Everyone
The Space Environmental Testing of Lightweight and High-Precision Carbon Composite Mirrors (ExHAM-CFRP Mirror) studies the deterioration and the long-term effects on Carbon Fiber Reinforced Plastics (CFRP) replicated mirrors when they are exposed to the space environment.
Science Results for Everyone
Initiation of this investigation has been affected by the loss of the Orbital-3 launch vehicle and mission in October 2014.
Japan Aerospace Exploration Agency (JAXA), Tsukuba, , Japan
Sponsoring Space Agency
Japan Aerospace Exploration Agency (JAXA)
ISS Expedition Duration
September 2014 - Ongoing
Previous ISS Missions
- Carbon Fiber Reinforced Plastics (CFRP) are lightweight materials which have good mechanical properties, and are used in spacecraft antennas and telescope reflector materials. However, the degradation data of the CFRP materials after exposure to the space environment for long period was not obtained in ground experiments. Therefore, understanding the process of degradation for CFRP is very important for evaluating its use in spacecraft structural components.
- Mirrors made of CFRP are attached to the JEM-EF facility for long duration exposure to the space environment.
- To realize the lightweight and high-precision CFRP constructed mirrors applicable in the wavelengths from submillimeter to optical, is essential for the antennas and telescopes of the next generation of astronomical and earth observation satellites.
Lightweight and high-precision CFRP replicated mirrors contribute to the development of antennas and telescopes for the next generation of astronomical and earth observation satellites.
The next generation of astronomical and earth observation satellites has the predicted capability of providing a large amount of scientific information about the earth environment.
Ground Based Results Publications
Manabe T, Nishibori T, Mizukoshi K, Otsubo F, Ochiai S, Ohmine H. Measurement of the offset-Cassegrain antenna of JEM/SMILES using a near-field phase-retrieval method in the 640-GHz band. IEEE Transactions on Antennas and Propagation. 2012 August; 60(8): 3971-3976.
Kasai Y, Sagawa H, Kuroda T, Manabe T, Ochiai S, Kikuchi K, Kikuchi K, Nishibori T, Baron P, Mendrok J, Hartogh P, Murtagh DP, Urban J, von Scheele F, Frisk U. Overview of the Martian atmospheric submillimetre sounder FIRE. Planetary and Space Science. 2012 April; 63-64: 62-82. DOI: 10.1016/j.pss.2011.10.013.
Kikuchi K, Kikuchi K, Sagawa H, Kuroda T, Kasai Y, Ochiai S, Nishibori T, Manabe T, Hartogh P, Urban J, Murtagh DP. Introduction to the submillimeter receiver system for the atmospheric emission sounder MELOS/FIRE. Asia Oceania Geosciences Society - American Geophysical Union (WPGM) Joint Assembly, Singapore; 2012 August 13-17