Yuta Tobata   Shinsuke Takeuchi   Ken Goto   
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 41(1) 185-193 2021年1月
This study investigated cumulative damage mechanisms of short fiber type C/SiC under compression. To measure mechanical properties (unloading modulus and permanent strain) before fracture, repeated loading-unloading tests were conducted using a st...
Proceedings of SPIE - The International Society for Optical Engineering 11443 2020年
We present an overview of the cryogenic system of the next-generation infrared observatory mission SPICA. One of the most critical requirements for the SPICA mission is to cool the whole science equipment, including the 2.5 m telescope, to below 8...
年次大会 : Mechanical Engineering Congress, Japan 2013 "S042011-1"-"S042011-4" 2013年9月
ZrB_2-SiC-ZrC(ZSZ) with four different compositions containing 16 vol% SiC were sintered by hot pressing and spark plasma sintering. In this study, ZSZs were oxidized in the ultra-high temperature range by two different tests. Firstly, ZSZs were o...
For a high accuracy antenna in next radio astronomy satellite, a candidate material is Carbon Fiber Reinforced Plastics (CFRP). Because longitudinal thermal expansion coefficient of unidirectional CFRP is negative, we can design a laminate without...