Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Provenance and Microstructures of an Ancient Korean Bronze Dagger

한국(韓國) 세형동검(細形銅劍)의 미세구조(微細構造) 및 원료산지(原料産地) 추정(推定)

  • Choi, Ju (Korea Institute of Science and Technology (KIST)) ;
  • Do, Jung Man (Korea Institute of Science and Technology (KIST)) ;
  • Kim, Soo Chul (Korea Institute of Science and Technology (KIST)) ;
  • Kim, Sun Tae (Korea Institute of Science and Technology (KIST)) ;
  • Eom, Tae Yoon (Korea Atomic Energy Research Institute) ;
  • Kim, Jung-Bae (Dept. of Korean History, College of Liberal Arts, Korea University)
  • 최주 (한국과학기술연구원) ;
  • 도정만 (한국과학기술연구원) ;
  • 김수철 (한국과학기술연구원) ;
  • 김선태 (한국과학기술연구원) ;
  • 엄태윤 (한국원자력연구소) ;
  • 김정배 (고려대학교 문과대학 한국사학과)
  • Received : 1992.03.30
  • Published : 1992.06.25
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Abstract

An ancient Korean bronze dagger excavated from Yongjai-ri, Iksan-kun, presumed to be manufactured in the pre-historical age, was examined by means of chemical analysis, energy dispersive spectrometry, optical and scanning electron microscopy. Also the measurement of lead isotope ratios was carried out in order to predict the site where raw materials were produced. The composition was identified as 75.3% Cu, 17.1% Sn and 6.8% Pb which was a typical composition of Korean bronze dagger. The microstructure was consisted of ${\alpha}$ and (${\alpha}+{\delta}$) eutectoid. The (${\alpha}+{\delta}$) eutectoid can be easily corroded in comparison with ${\alpha}$. The segregation was frequently observed in the interior of the sample. According to the lead isotopes ratios, raw materials have possibility to be from North China.

익산군(益山郡) 용제리(龍提里)에서 출토(出土)된 기원전(紀元前)의 세형동검(細形銅劍)을 습식(濕式) 및 원자흡수분광법(原子吸收分光法)으로 조성(組成)을 정량(定量)하였으며, 시편(試片)을 연마(硏磨), 부식(腐蝕)시켜 광학현미경(光學顯微鏡)과 주사형(走査型) 전자현미경(電子顯微鏡)으로 미세구조(微細構造)를 관찰(觀察)하였다. 또한 질량분석계(質量分析計)를 써서 납동위원소비(同位元素比)를 측정(測定)하여 원료(原料)의 산지(産地)를 추정(推定)코자 하였다. 세형동검(細形銅劍)은 Cu-Sn-Pb계(系)로서 Sn이 17%, Pb가 6.8%로서 Sn이 10% 이상이고 Pb가 첨가(添加)된 것으로 보아 청동기(靑銅器) 중기(中期) 이후(以後)임을 알 수 있었다. 시료내부(試料內部)는 ${\alpha}$와 (${\alpha}+{\delta}$) 공정(共晶)으로 되어 있으며 편석(偏析)이 일어나 있었다. 원료(原料)는 중국(中國) 북부산(北部産)일 가능성(可能性)이 크다.

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