Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kiyoka Takagi"'
Autor:
Hiroyuki Yamane, Masaki Oura, Noriko Yamazaki, Tomoko Ishihara, Koichi Hasegawa, Tetsuya Ishikawa, Kiyoka Takagi, Takaki Hatsui
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract Adhesion is a technology for assembling carbon fiber (CF) reinforced polymer (CFRP), enabling them to maintain their lightweight and high-stiffness properties. Despite the importance of adhesion, the lack of a molecular-level understanding o
Externí odkaz:
https://doaj.org/article/8d9d211af35741d49b816752446601b9
Autor:
Hiroyuki Yamane, Masaki Oura, Osamu Takahashi, Tomoko Ishihara, Noriko Yamazaki, Koichi Hasegawa, Tetsuya Ishikawa, Kiyoka Takagi, Takaki Hatsui
Publikováno v:
Communications Materials, Vol 2, Iss 1, Pp 1-7 (2021)
Understanding adhesion mechanisms for polymer composites is challenging due to the bonded interface being buried. Here, soft X-rays are used to probe the chemical and physical nature of the interface, revealing multiscale factors that influence the a
Externí odkaz:
https://doaj.org/article/5001a84f2fca4556a6bd23dc5bbd4eae
Publikováno v:
Journal of Nondestructive Evaluation. 42
Autor:
Noriko Yamazaki, Masataka Ohkubo, Takeo Matsuki, Yukihiro Shimoi, Yoshihisa Harada, Toshiaki Miura, Kiyoka Takagi, Koichi Hasegawa
Publikováno v:
The Journal of Physical Chemistry B. 125:11044-11057
The adhesion and fracture behavior of tetraglycidyl-4,4'-diaminodiphenylmethane (TGDDM)/4,4'-diaminodiphenyl sulfone (44DDS)-bisphenol A diglycidyl ether (DGEBA)/44DDS layer interfaces were investigated by molecular dynamics (MD) simulation, mainly f
Autor:
Tomoko Ishihara, Noriko Yamazaki, Takaki Hatsui, Koichi Hasegawa, Masaki Oura, Osamu Takahashi, Hiroyuki Yamane, Kiyoka Takagi, Tetsuya Ishikawa
Publikováno v:
Communications Materials, Vol 2, Iss 1, Pp 1-7 (2021)
Adhesion is an interfacial phenomenon that is critical for assembling carbon structural composites for next-generation aircraft and automobiles. However, there is limited understanding of adhesion on the molecular level because of the difficulty in r
Autor:
Koichi Hasegawa, Takaki Hatsui, Yukihiro Shimoi, Hiroyuki Yamane, Osamu Takahashi, Masaki Oura, Masataka Ohkubo, Paul Fons, Noriko Yamazaki, Tetsuya Ishikawa, Kiyoka Takagi, Pradeep R. Varadwaj
Publikováno v:
The Journal of Physical Chemistry C. 124:9622-9627
Using X-ray absorption spectroscopy (XAS), we investigated local chemical interactions in thermosetting epoxy resins for structural composites: N,N,N′,N′-tetraglycidyl-4,4′-diaminodiphenylmethane (...
Publikováno v:
ACS Applied Polymer Materials. 2:1500-1507
Reinforcement of the interfacial interaction between epoxy adhesives and metallic materials was achieved by using poly(glycidyl methacrylate) (PGMA) with N-(3,4-dihydroxyphenethyl)methacrylamide (D...
Autor:
Kiyoka Takagi, Koichi Hasegawa, Hiroyuki Yamane, Kei Sawada, Noriko Yamazaki, Takaki Hatsui, Tetsuya Ishikawa, Masaki Oura, Tomio Ebisu
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 232:11-15
The local electronic state of the N,N,N',N'-tetraglycidyl-4,4′-diaminodiphenylmethane epoxy resin cured with 4,4′-diaminodiphenylsulfone (TGDDM-DDS), one of model adhesive materials, was investigated by the O K-edge X-ray absorption spectroscopy
Autor:
Kiyoka Takagi, Masahiro Kashiwagi, Toshio Abe, Yukihiro Sato, Kazuhiro Miura, Yoshinori Nonaka
Publikováno v:
Journal of the Japan Society for Composite Materials. 44:49-53
Autor:
Toshio Abe, Kazuhiro Miura, Yoshinori Nonaka, Kiyoka Takagi, Yukihiro Sato, Masahiro Kashiwagi
Publikováno v:
Journal of the Japan Society for Composite Materials. 44:54-61