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Sugimoto, Masaki; Idesaki, Akira; Yoshikawa, Masahito; Watanabe, Shogo*; Seki, Shu*
Advances in Polymer Derived Ceramics and Composites; Ceramic Transactions, Vol.213, p.105 - 110, 2010/06
We have succeeded in synthesizing ceramic nano fibers from precursor polymers using Single Particle Nanofabrication Technique (SPNT). A thin film of the precursor polymer was cross-linked by MeV-order heavy-ion beam irradiation along ion tracks of nano-size in radius through the whole thickness of the thin film. Nano fibers were developed on the surface of the substrate by dissolution and washing away of un-crosslinked polymer. Subsequent pyrolysis converted polymeric into ceramic nano fibers. The radius, length and number density of nano fibers are controlled by liner energy transfer (LET) of ion beam, thickness of polymeric target and number of projected ions, respectively.
Sugimoto, Masaki; Yoshikawa, Masahito; Watanabe, Shogo*; Seki, Shu*
no journal, ,
We have succeeded in synthesizing the self-standing silicon carbide (SiC) nano-fiber from Si-based polymers using Single Particle Nanofabrication Technique (SPNT) with multi angle ion beam irradiation. Si-based polymers were cross-linked by MeV-order heavy-ion along ion tracks of nano-size in radius through the whole thickness of the polymer thin film. Nano fibers were developed on the surface of the substrate by dissolution and washing away of un-crosslinked polymer by solvent. Subsequent pyrolysis converted polymeric into inorganic SiC nano fibers.
Sugimoto, Masaki; Yoshikawa, Masahito; Watanabe, Shogo*; Seki, Shu*
no journal, ,
We have succeeded in synthesizing metal folding ceramic (SiC) nano-fiber from Si-based precursor polymers using Single Particle Nanofabrication Technique (SPNT). Si-based polymers were cross-linked along ion tracks of nano-size in diameter through the whole thickness of polymer thin film. Nano-fiber was developed on the surface of the substrate by dissolution and washing away of uncross-linked polymer by solvent. Subsequent pyrolysis converted polymeric into inorganic SiC nano fibers. The diameter of nano fiber was depended on LET (liner energy transfer), molecular weight and cross-linking efficiency of polymers.