Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
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Study on Manufacturing Technique and Lead Provenance of Bronze Bodhisattva from Pangyo-dong Sites in Seongnam

성남 판교 출토 청동보살상의 제작기법 및 납 원료의 산지추정

  • Choi, Mi Ra (Department of Cultural Heritage Conservation Science, Kongju National University) ;
  • Cho, Nam Chul (Department of Cultural Heritage Conservation Science, Kongju National University) ;
  • Kim, Dong Min (Korea Cultural Heritage Foundation) ;
  • Yun, Sun Young (Korea Cultural Heritage Foundation)
  • 최미라 (공주대학교 문화재보존과학과) ;
  • 조남철 (공주대학교 문화재보존과학과) ;
  • 김동민 (한국문화재보호재단 연구지원팀) ;
  • 윤선영 (한국문화재보호재단 연구지원팀)
  • Received : 2013.07.18
  • Accepted : 2013.09.10
  • Published : 2013.09.20
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Abstract

Analysis of the bronze bodhisattva from Pangyo-dong sites in Seongnam by computed tomography, ICP-AES, metallurgical microscope and SEM-EDS had to know manufacturing technique. And the origin of the raw material, was investigated using TIMS. Results with computed tomography, two bronze bodhisattva produced by lost-wax casting technique with hollow inside and could see the core of the inside. Result of component analysis and microstructure observation, material is alloy of copper-tin-lead and made by casting without artificial treatment. According to lead isotope ratio analysis result of bronze bodhisattva could be made into galena of the Gyeonggi massif in Korea South.

성남 판교에서 출토된 청동보살상 2점의 제작기법을 알아보기 위해 CT촬영, ICP-AES, 금속현미경, SEM-EDS를 이용하여 분석하였다. 또한 원료의 산지는 TIMS(납동위원소비)를 이용하여 알아보았다. CT촬영결과 2점의 청동보살상 모두 중공식 밀납법을 사용하여 제작되었으며, 내부의 철심을 확인할 수 있었다. 성분 및 미세조직 관찰 결과 두 점 모두 Cu-Sn-Pb의 삼원계 합금으로 열처리를 비롯한 인공적인 가공 없이 주조로 제작되었다. 납동위원소비 분석 결과 2점의 청동보살상은 한반도 남부 경기지괴의 방연석을 사용하여 제작되었을 가능성이 크다.

Keywords

References

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