보존과학연구
- Serial No. 27
- /
- Pages.5-22
- /
- 2006
Metallurgical study of bronze bells excavated from the Miruksa (temple) site in Iksan
익산 미륵사지 출토 동종의 금속학적 연구
- Cho, Nam-chul (Dept. of Cultural Horitage Conservation Science, college of National Science, Kongju University) ;
- Huh, Il-kwon (Dept. of Cultural Horitage Conservation Science, college of National Science, Kongju University) ;
- Kang, Hyung-tae (Conservation Science Laboratory, National Museum of Korea)
- Published : 2006.12.11
Abstract
Mireuksa is a temple that was established in the Baekjea Period and continued around to the 16thcentury. The sites of the temple throughout diverse periods such as the United Shilla Period, KoryuPeriod, and Chosun Period including the one of the early temple in the late Baekjea Period were discovered. In those temple sites, there were lots of diverse artifacts discovered including artifacts in the Bronze Age. In this study, the compositions of four bronze bells excavated from Mireuksa site in Iksan were analyzed and the manufacturing technique of bronze bells was studied through the observation of microstructure. Also, the analytical cases of ancient bronze bells were collected and compared. Furthermore, the provenance study of the bronze bells site was attempted with the Pbisotope ratio. The results aim to offer crucial keys for discovering the aspect of society as well as information about the origin, development, and the route of propagation of ancient technologies. Bronze bell No. 1 showed an unexpected composition as Cu was found 98.5% in it. There were shown twins which were created by annealing and an even phase in the fine grains. It was also shown that bronze bell No. 2 and 4 had a high content of Pb although they showed a similar composition with general bronze bells in terms of Sn content. As shown in the analysis characteristics table of Korean bronze bell of this study, the ancient bronze bell used Pb of which content was limited to 2.12% in general, however, the results showed 15.5% and 13.2% respectively, which is an excessive amount. Asa result of analyzing inclusion in the microstructure of bronze bell No. 2, it was found that sulfide group mineral was used since there appeared S(14.55%). Also, it was proven that
Keywords