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...
ZrB_2-SiC-ZrC (ZSZ) ceramics were oxidized by two different methods to evaluate their oxidation mechanism and oxidation resistance at ultra high temperature region. Firstly, ZSZs were oxidized at 1700℃ by IR image furnace. Experimental results rev...
Deformation behaviors of TBC system under four major modes of thermo-mechanical fatigue test conditions have been studied, i.e., in-phase and out-of-phase conditions under stress or strain control modes. Stress-strain behavior of TBC system under ...
年次大会 : Mechanical Engineering Congress, Japan 2012 "S042011-1"-"S042011-4" 2012年9月
ZrB_2-SiC-ZrC (ZSZ) ceramics with four different compositions containing 16 vol% SiC were sintered by hot press and spark plasma sintering. The relative density of all the ZSZ ceramics made by both methods reached around 95%. These ZSZs oxidized c...
A nozzle and a combustion chamber of a small liquid fuel rocket engine used as an upper stage engine of solid propellant rocket and an apogee engine of a satellite requires to operate without cooling by cryogenic fuels. From this reason, materials...