Evaluation of Spaceborne SiC Mirror Materials Using Samples Cut from the Periphery of a Mirror Body
| Autor: | Yukari Y. Yui, Masaki Kotani, Haruyoshi Katayama, Yoshikazu Muta, Tadashi Imai, Hidehiro Kaneda, Takao Nakagawa, Keigo Enya, Yoshio Tange, Shinji Ogihara, Akinori Yoshimura |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
spaceborne SiC mirror
Materials science business.industry Mechanical Engineering microstructure Stiffness Deformation (meteorology) Microstructure material evaluation stiffness Optics Mechanics of Materials visual_art visual_art.visual_art_medium medicine General Materials Science Ceramic Thermal reliability medicine.symptom business Material properties Aerospace Engineering design process coefficient of thermal expansion |
| Zdroj: | Journal of Materials Engineering and Performance. 23(3):850-858 |
| ISSN: | 1059-9495 1420-0120 |
| Popis: | 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. 資料番号: PA1420012000 |
| Databáze: | OpenAIRE |
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