Evaluation of the Weathered Japanese Roof Tiles of Himeji Castle (1); Soft X-Ray Absorption Analysis of Surface Carbon Films

DOI

Bibliographic Information

Other Title
  • 姫路城いぶし瓦の劣化評価（1）；表面炭素膜の放射光軟X線吸収分析

Abstract

<p>Japanese roof tiles weathered for 50 years on Himeji Castle have been evaluated by soft X-ray absorption spectroscopy using synchrotron radiation. Carbon oxides, iron oxides and calcium oxides were observed on the surface carbon films of the roof tiles. Ion oxides came from the sintered clay substrates, and the calcium oxides from mortar. The carbon films were oxidized with various oxygenated functional groups, and sp3 carbons with alkyl groups were formed on the graphitic sp2 carbon films. This caused the disorder of the orientation of the graphitic carbon films. These oxidation and degradation of the carbon films were apparently accelerated by the exposure to the weather. However, carbon films have sufficiently remained on the roof tiles. This suggests that the weathered roof tiles can be surely reused as "Ibushi Kawara" coated with carbon films in the restoration of Himeji Castle.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390016272552318208
  • DOI
    10.57415/xshinpo.45.0_149
  • ISSN
    27583651
    09117806
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

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