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J. Conserv. Sci > Volume 29(3); 2013 > Article
Journal of Conservation Science 2013;29(3):231-241.
DOI: https://doi.org/10.12654/JCS.2013.29.3.04    Published online September 30, 2013.
성남 판교 출토 청동보살상의 제작기법 및 납 원료의 산지추정
최미라, 조남철, 김동민, 윤선영
Study on Manufacturing Technique and Lead Provenance of Bronze Bodhisattva from Pangyo-dong Sites in Seongnam
Mi Ra Choi, Nam Chul Cho, Dong Min Kim, Sun Young Yun
초 록
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.
중심어: 청동보살상, 제작방법, 미세조직, 산지추정, 납동위원소비
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.
Key Words: Bronze Bodhisattva, Manufacturing technique, Microstructure, Provenance, Lead isotope ratio


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