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...
日本複合材料学会誌 = Journal of the Japan Society for Composite Materials 30(5) 207-213 2004年9月
Spin burst tests of carbon-carbon (C/C) rings were carried out to confirm fracture criterion under high speed rotation as a function of the inner/outer diameter ratio R. The C/C rings were of a quasi-isotropic lamination type and were confirmed to...
Tensile strength and creep behavior of a 2D laminate carbon-carbon composite (C/C) were examined from room temperature to 2773 K in an inert atmosphere. The tensile strength of the C/C was monotonically enhanced with increasing test temperatures. ...
Feasibility studies were carried out aiming at the application of carbon/carbon (C/C) composites to a turbine disk, heat exchangers, and a plug nozzle for an ATREX engine intended for use in a future TSTO space vehicle. In these applications, the ...
Cold spin tests of three dimensional fiber-reinforced carbon-carbon composites were conducted for the turbine disk of the air-turbo ram jet engine (ATREX). The fly-out objects were detected at the rotation speed of 12000 r.p.m. and the fly-out beh...