Characterization of Carbon Films on the Japanese Smoked Roof Tile “Ibushi-Kawara” by High-Resolution Soft X-ray Spectroscopy
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概要
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Carbon films on the Japanese smoked roof tile “Ibushi-Kawara” were characterized by high-resolution soft X-ray spectroscopy using synchrotron radiation. By comparing the soft X-ray emission and absorption spectra of Kawara with the reference carbon compounds, it was determined that the carbon films on Kawara consist of mostly carbon-black-like sp2 carbon atoms and that the surface also contains polyethylene-like sp3 carbon atoms. The take-off/incident-angle dependence on the X-ray emission/absorption spectra of Kawara shows that the carbon-black-like sp2 carbon atoms partially form a layer structure oriented parallel to the basal clay plane, and that the degree of orientation of the carbon films is estimated to be 50% that of highly oriented pyrolytic graphite (HOPG). The microstructure of the carbon films on Kawara is one in which half of the carbon-black-like sp2 carbon atoms form layer-structured clusters parallel to the basal clay plane and the rest of the carbon atoms form random-structured clusters which rigidly connect the layer-structured clusters.
- 2003-10-15
著者
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GULLIKSON Eric
Lawrence Berkeley Laboratory
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PERERA Rupert
Lawrence Berkeley Laboratory
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Motoyama Muneyuki
Hyogo Prefectural Institute of Industrial Research
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MURAMATSU Yasuji
Kansai Research Establishment, Japan Atomic Energy Research Institute (JAERI)
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DENLINGER Jonathan
Lawrence Berkeley National Laboratory
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Perera Rupert
Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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Gullikson Eric
Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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Denlinger Jonathan
Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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