K
Kiyohito Okamura
Researcher at Applied Materials
Publications - 81
Citations - 1188
Kiyohito Okamura is an academic researcher from Applied Materials. The author has contributed to research in topics: Fiber & Pyrolysis. The author has an hindex of 18, co-authored 81 publications receiving 1140 citations.
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Synthesis of continuous silicon carbide fibre: Part 4The structure of polycarbosilane as the precursor
Yoshio Hasegawa,Kiyohito Okamura +1 more
TL;DR: In this article, the structure of polycarbosilane is represented by three structural elements (SiC4, SiC3H,SiCxSi4−x) and their quantification is difficult.
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Structural analysis in continuous silicon carbide fiber of high tensile strength
TL;DR: The starting material of a continuous silicon carbide fiber with very high tensile strength is a polycarbosilane as discussed by the authors, which decomposes from 300°C in vacuum and is gradually converted into a β-silicon carbide fibre by the heat-treatment at the temperature above 800°C.
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SIMPLE SYNTHESIS OF THE CONTINUOUS SiC FIBER WITH HIGH TENSILE STRENGTH
TL;DR: In this article, a polycarbosilane, the starting material of β-SiC fibers, was prepared without autoclave and a great number of bundles of SiC fibers were obtained by way of oxidative reactions.
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Application of radiation curing in the preparation of polycarbosilane-derived SiC fibers
Kiyohito Okamura,Tadao Seguchi +1 more
TL;DR: In this article, a combination of radiation curing and annealing was used to obtain a high tensile strength of 2.5 GPa after heat treatment at 1773 K.