@article{oai:jaxa.repo.nii.ac.jp:00022687,
 author = {杉田, 聡司 and 粟木, 久光 and 栗原, 大千 and 吉岡, 賢哉 and 野村, 美月 and 黄木, 景二 and 富田, 悠希 and 三田, 朋希 and 國枝, 秀世 and 松本, 浩典 and 宮澤, 拓也 and 三石, 郁之 and 岩瀬, 敏博 and 前島, 将人 and 島, 直究 and 石川, 隆司 and 浜田, 高嘉 and 石田, 直樹 and 秋山, 浩庸 and 岸本, 和昭 and 宇都宮, 真 and 神谷, 友裕 and Sugita, Satoshi and Awaki, Hisamitsu and Kurihara, Daichi and Yoshioka, Kenya and Nomura, Mizuki and Ogi, Keiji and Tomita, Yuuki and Mita, Tomoki and Kunieda, Hideyo and Matsumoto, Hironori and Miyazawa, Takuya and Mitsuishi, Ikuyuki and Iwase, Toshihiro and Maejima, Masato and Shima, Naoki and Ishikawa, Takashi and Hamada, Takayoshi and Ishida, Naoki and Akiyama, Hiromichi and Kishimoto, Kazuaki and Utsunomiya, Shin and Kamiya, Tomohiro},
 issue = {3},
 journal = {Journal of Astronomical Teleccopes, Instruments, and Systems},
 month = {Jul},
 note = {We study a lightweight x-ray mirror with a carbon fiber reinforced plastic (CFRP) substrate for next-generation x-ray satellites. For tightly nested x-ray mirrors, such as those on the Suzaku and ASTRO-H telescopes, CFRP is the suitable substrate material because it has a higher strength-to-weight ratio and forming flexibility than those of metals. In flat CFRP substrate fabrication, the surface waviness has a root mean square (RMS) of ～ 1 μm in the best products. The RMS approximately reaches a value consistent with the RMS of the mold used for the forming. We study the effect of moisture absorption using accelerated aging tests in three environments. The diffusivity of the CFRP substrate at 60 C and at relative humidity of 100% is ～ 9.7 × 10(exp -4) mm2･h(exp -1), and the acceleration rate to the laboratory environment was 180 times higher. We also develop co-curing functional sheets with low water-vapor transmissivity on the CFRP substrate. Co-curing the sheets successfully reduced the moisture absorption rate by 440 times compared to the un-co-cured substrate. Details of the CFRP substrate fabrication and moisture absorption tests are also reported., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: PA1610074000},
 pages = {034003-1--034003-7},
 title = {Studies of the moisture absorption of thin carbon fiber reinforced plastic substrates for x-ray mirrors},
 volume = {1},
 year = {2015}
}