TY - JOUR
T1 - Evaluation of spaceborne SiC mirror materials using samples cut from the periphery of a mirror body
AU - Kotani, Masaki
AU - Muta, Yoshikazu
AU - Yoshimura, Akinori
AU - Ogihara, Shinji
AU - Imai, Tadashi
AU - Katayama, Haruyoshi
AU - Yui, Yukari
AU - Tange, Yoshio
AU - Enya, Keigo
AU - Kaneda, Hidehiro
AU - Nakagawa, Takao
PY - 2014/3
Y1 - 2014/3
N2 - The Japan Aerospace Exploration Agency has studied large-scale, lightweight mirrors constructed of SiC-based materials as a key technology for future earth observations and astronomical missions. One of the most important technical issues for large-scale ceramic components is their quality stability (viz., differences in material properties depending on the part and the processing), which might influence the structural and/or thermal reliability through unforeseen deformation and breakage. In this study, the authors used a simple, low-cost method for evaluating the properties of SiC mirror materials. Using mechanical testing, thermodilatometry, and microstructural analysis on samples cut from the periphery of a prototype 800-mm-diameter mirror body, the overall quality of the mirror body material was determined.
AB - The Japan Aerospace Exploration Agency has studied large-scale, lightweight mirrors constructed of SiC-based materials as a key technology for future earth observations and astronomical missions. One of the most important technical issues for large-scale ceramic components is their quality stability (viz., differences in material properties depending on the part and the processing), which might influence the structural and/or thermal reliability through unforeseen deformation and breakage. In this study, the authors used a simple, low-cost method for evaluating the properties of SiC mirror materials. Using mechanical testing, thermodilatometry, and microstructural analysis on samples cut from the periphery of a prototype 800-mm-diameter mirror body, the overall quality of the mirror body material was determined.
KW - coefficient of thermal expansion
KW - material evaluation
KW - microstructure
KW - spaceborne SiC mirror
KW - stiffness
UR - https://www.scopus.com/pages/publications/84894873235
U2 - 10.1007/s11665-013-0827-1
DO - 10.1007/s11665-013-0827-1
M3 - Article
AN - SCOPUS:84894873235
SN - 1059-9495
VL - 23
SP - 850
EP - 858
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
IS - 3
ER -