Earticle

초록

영어

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 ulvöspinel. Raman micro-spectroscopy and SEM-EDS were also used to verify that the coarse white dendritic structures observed in the Gyeongju-slag were Wüstites. 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.

목차

ABSTRACT
1. INTRODUCTION
2. MATERIALS AND METHODS
2.1. Samples
2.2. Research methods
3. RESULTS AND DISCUSSION
3.1. No.1 Pohang-slag
3.2. No.2 Gyeongju-slag
3.3. No.3 Wanju-slag
4. CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES

키워드

저자

• Su Kyoung Park [ Department of Cultural Heritage Conservation Science, Gongju National University, Gongju-si, 32588, Republic of Korea ]
• In Cheol Kwon [ Department of Conservation and Art Bank, National Museum of Modern and Contemporary Art, Cheongju, 28501, Republic of Korea ]
• Su Jeong Lee [ Monitoring team, Chungnam Cultural Heritage Association, Yesan, 32432, Republic of Korea ]
• Il Kwon Huh [ Conservation Science Laboratory, Jinju National Museum, Jinju, 52692, Republic of Korea ]
• Nam Chul Cho [ Department of Cultural Heritage Conservation Science, Gongju National University, Gongju-si, 32588, Republic of Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  보존과학회지 [Journal of Conservation Science]

• 간기

  연5회

• pISSN

  1225-5459

• eISSN

  2287-9781

• 수록기간

  2003~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 602 DDC 700