Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Masaki KOTANI"'
Autor:
Masaki Kotani, Shinji Ogihara
Publikováno v:
Journal of Asian Ceramic Societies, Vol 9, Iss 2, Pp 519-530 (2021)
A carbon layer can be produced on the surfaces of the SiC fibers used in SiC-fiber-reinforced SiC matrix (SiC/SiC) composites via high-temperature heat treatment in a reductive atmosphere. This layer acts as an interfacial sliding layer and helps tai
Externí odkaz:
https://doaj.org/article/473d039dff6f4569b80f9689c1725662
Autor:
Masaki Kotani, Shinji Ogihara, Takuma Tanaka, Takeo Oda, Takayuki Kojima, Takeshi Takagi, Kohei Ejiri
Publikováno v:
Journal of the Ceramic Society of Japan. 129(6):292-309
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
Accepted: 2021-03-23
資料番号: PA2120047000
Physical characteristics: Original contains color illustrations
Accepted: 2021-03-23
資料番号: PA2120047000
Autor:
Shinji Ogihara, Masaki Kotani
Publikováno v:
Journal of Asian Ceramic Societies, Vol 9, Iss 2, Pp 519-530 (2021)
形態: 図版あり
Physical characteristics: Original contains color illustrations
Accepted: 2021-02-16
資料番号: PA2120062000
Physical characteristics: Original contains color illustrations
Accepted: 2021-02-16
資料番号: PA2120062000
Publikováno v:
Progress in Nuclear Energy. 82:148-152
Unidirectional (UD) and crossply (CP) SiCf/SiC composites with different fiber volume fraction were fabricated based on EPD and sheet stacking process, and their mechanical properties were evaluated at room temperature. The UD-SiCf/SiC composites sho
Autor:
Masashi Miyamoto, Shin Utsunomiya, Yukari Y. Yui, Masahiro Suganuma, Hiroyuki Sugita, Takao Nakagawa, Masataka Naitoh, Haruyoshi Katayama, Masaki Kotani, Yasuji Yamamoto, Hideki Saruwatari, Yoshio Tange, Toshihiko Yamawaki, Hidehiro Kaneda, Ken Goto
Publikováno v:
International Conference on Space Optics — ICSO 2008.
Very lightweight mirror will be required in the near future for both astronomical and earth science/observation missions. Silicon carbide is becoming one of the major materials applied especially to large and/or light space-borne optics, such as Hers
Autor:
Masaki Kotani, Masahiro Suganuma, Masataka Naitoh, Haruyoshi Katayama, Takao Nakagawa, Yukari Y. Yui, Kenta Maruyama, Tadashi Imai, Hidehiro Kaneda, Yoshio Tange
Publikováno v:
International Conference on Space Optics — ICSO 2010.
We carried out various tests of 800-mm-diameter aperture, lightweight optics that consisted wholly of carbon fiber-reinforced SiC composite, called HB-Cesic. A cryogenic optical test was performed on the primary mirror to examine any CTE irregularity
Publikováno v:
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III.
A large-scale lightweight mirror that is made of silicon carbide-based material is required for the coming astronomical and earth observation missions. The influence of the inhomogeneity of the coefficient of thermal expansion (CTE) on specular surfa
Autor:
Toshio Ogasawara, Akihiro Yamauchi, Toyohiko Yano, Masaki Kotani, Hiroyuki Akimoto, Katsumi Yoshida
Publikováno v:
Key Engineering Materials. 617:213-216
C-and BN-interphases on SiC fibers for unidirectional SiCf/SiC composites were formed by EPD process, and their microstructure and mechanical properties were investigated. Whereas the C-SiCf/SiC composites showed a pseudo-ductile fracture behavior wi
Autor:
Yukari Y. Yui, Masaki Kotani, Haruyoshi Katayama, Yoshikazu Muta, Tadashi Imai, Hidehiro Kaneda, Takao Nakagawa, Keigo Enya, Yoshio Tange, Shinji Ogihara, Akinori Yoshimura
Publikováno v:
Journal of Materials Engineering and Performance. 23(3):850-858
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-s
Autor:
Haruyoshi Katayama, Tadashi Imai, Hidehiro Kaneda, Takao Nakagawa, Yukari Y. Yui, Yoshio Tange, Keigo Enya, Masaki Kotani
Publikováno v:
Applied Optics. 52(20):4797-4805
The Japan Aerospace Exploration Agency has studied a large-scale lightweight mirror constructed of reaction-bonded silicon carbide-based material as a key technology in future astronomical and earth observation missions. The authors selected silicon