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Journal of Conservation Science 2001;10(1):31-37.
Published online December 30, 2001.
능산리절터 제3건물지 출토 청동덩어리에 대한 금속학적 분석
노태천
The metallurgical Analysis of a Bronze-Lumps from the Third Building Site at Neungsan-ri Temple Site
Tae-Cheon Rho
초 록
부여 능산리절터 제3건물지(공방)의 북측 공방터에서 수습된 청동덩어리 시료 4개에 대한 금속학적 조사를 실시하였다. 시료 단면의 미세조직은 SEM을 이용하여 관찰하였고, 시료의 정성 및 정량분석은 EDS를 이용하였다. 분석 결과는 다음과 같다. 절터 제3건 물지 내의 북측공방터에서 수습된 청동덩어리 시료 1과 시료 2는 동제련 과정에서 형성된 동피(matte)를 제련하여 만든 조동(粗銅)로 추정되고, 시료 3은 구리 제련 과정에서 만든 정동(精銅)에 주석만을 첨가하여 합금했을 가능성이 있는 Cu-Sn계 청동덩어리이고, 시료 4는 정동에 주석과 납을 함께 첨가하여 합금했을 가능성이 있는 Cu-Sn-Pb계의 청동덩어리였다. 이 제3건물지(공방)에서는 동광석을 제련하여 동피를 만들거나, 외부에서 반입된 동피를 녹여 조동을 만들고, 이것들을 다시 정련하여 정동을 만든 다음에, 주석과 납을 첨가시켜 조성이 다른 여러 가지 청동제품을 만든 것으로 추정된다.
ABSTRACT
The metallurgical investigation of four lumps of bronze from the third building site of the northern workshop site at the Neungsan-ri temple site in Buyeo was performed. The microstructures of a section of sample was observed by SEM and qualitative and quantitative analysis of the sample was performed by EDS. The results are as follows: Sample 1 of the lump of bronze from northern workshop site in the third building site at Neungsan-ri temple site and sample 2 are speculated to be low-quality bronze resulting from refinery of matte which formed on the process of bronze refinery. Sample 3 is speculated as a lump of bronze which is one of Cu-Sn system and the one made by alloy only with pure bronze and tin on the process of bronze refinery. Sample 4 is confirmed as a lump of bronze which is one of Cu-Sn-Pb system from alloy of tin and lead into pure bronze. It is believed that the third building site at Neungsan-ri temple site in Buyeo produced bronze matte by refinery of copper ore or produced low-quality bronze by melting matte imported from outside.


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