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논문 기본 정보

자료유형
학술저널
저자정보
Park, Su Kyoung (Department of Cultural Heritage Conservation Science, Gongju National University) Kwon, In Cheol (Department of Conservation and Art Bank, National Museum of Modern and Contemporary Art) Lee, Su Jeong (Monitoring team, Chungnam Cultural Heritage Association) Huh, Il Kwon (Conservation Science Laboratory, Jinju National Museum) Cho, Nam Chul (Department of Cultural Heritage Conservation Science, Gongju National University)
저널정보
한국문화재보존과학회 보존과학회지 보존과학회지 제35권 제2호
발행연도
2019.1
수록면
145 - 152 (8page)

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The metal-manufacturing method and smelting temperature of ancient metal-production processes have been studied by analyzing the principal elements and microstructures of slag. However, the microstructure of slag varies according to the solidification cooling rate and types and relative amounts of various oxides contained within the smelting materials. Hence, there is a need for accurate analysis methods that allow slag to be distinguished by more than its composition or microstructure. In this study, the microstructures of slag discharged as a result of smelting iron sands collected from Pohang and Gyeongju, as well as the slag excavated from the Ungyo site in Wanju, were analyzed by using metalloscopy, scanning election microscopy-energy dispersine X-ray spectroscopy(SEM-EDS) and wavelength dispersive X-ray fluorenscence(WD-XRF). Furthermore, the microcrystals were accurately characterized by performing Raman micro-spectroscopy, which is a technique that can be used to identify the microcrystals of slags. SEM-EDS analysis of Pohang slag indicated that its white polygonal crystals could be Magnetite; however, Raman micro-spectroscopy revealed that these crystals were actually $ulv{\ddot{o}}spinel$. Raman micro-spectroscopy and SEM-EDS were also used to verify that the coarse white dendritic structures observed in the Gyeongju-slag were $W{\ddot{u}}stites$. Additionally, the Wanju slag was observed to have a glassy matrix, which was confirmed by Raman micro-spectroscopy to be Augite. Thus, we have demonstrated that Raman micro-spectroscopy can accurately identify slag microcrystals, which are otherwise difficult to distinguish as solely based on their chemical composition and crystal morphology. Therefore, we conclude that it has excellent potential as a slag analysis technique.

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