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A Study on Chemical Composition and Firing Temperature of White Wares from the Guyre-2ri Kiln Sites, Wonju

원주 귀래2리 가마터 출토 백자의 화학조성과 소성온도 연구

  • Lee, Byeong Hoon (Kangwon Research Institute of Cultural Heritage) ;
  • So, Myoung-Gi (Department of Nano Applied Engineering, Kangwon National University)
  • 이병훈 ((재)강원문화재연구소) ;
  • 소명기 (강원대학교 나노응용공학과)
  • Received : 2014.05.13
  • Accepted : 2014.08.20
  • Published : 2014.09.20

Abstract

This study aims to examine production technique of white wares from the Guyre-2ri 1st and 2nd kiln sites, Wonju, Gangwon Province and characteristics of the used materials, and to find a correlation among materials of the excavated white wares. X-ray fluorescence sequential spectroscopy(XRF), X-ray diffraction(XRD), Dilatometer and Inductively coupled plasma mass spectrometry(ICP-MS), Inductively coupled plasma automic emission spectrometer(ICP-AES) were applied to determine the chemical composition, crystalline phase of samples, firing temperatures, trace elements and rare earth elements. White wares from the Guyre-2ri kiln sites contained high contents of coloring oxides and fluxes. Though firing temperature of each sample was different, they were mostly fired at a temperature below $1200^{\circ}C$ and some of them experienced a low temperature of $1000^{\circ}C{\pm}20^{\circ}C$ and a high temperature above $1200^{\circ}C$. When analyzing body crystalline phases of the white wares using the XRD method, quartz and mullite were extracted from all the samples, and the proportions were similar to each other. When analyzing the excavated white wares using the Seger formula, also, all the samples showed similar clay sources and production techniques. Moreover, the white wares were made of host rocks of the same geological origin, according to the result of rare earth elements analysis.

본 연구에서는 강원도 원주 지역에서 발굴된 귀래2리 1호 가마터와 2호 가마터에서 출토된 백자의 제작 기술 및 사용 원료의 특징을 살펴보고 출토 백자 원료의 연관성을 도출하고자 하였다. X-선 형광분석기(XRF)와 X-선 회절분석(XRD), 열팽창계수 측정(Dilatometer), 유도결합 플라즈마 질량 분석법(ICP-MS) 및 유도결합 플라스마 방출 분광법(ICP-AES)을 이용하여 대상 시편에 대해서 각각 화학 조성과 결정상, 소성온도, 미량원소 및 희토류원소 등을 분석하였다. 귀래2리 가마터 출토 백자는 착색 산화물과 융제의 함유량이 높은 특징을 나타낸다. 소성온도는 시편마다 차이가 있지만 대부분 $1200^{\circ}C$ 이하에서 소성 되었으며 일부 시편은 $1000^{\circ}C{\pm}20^{\circ}C$에서 저온 소성되었고 귀래2리 1호 가마터 출토 백자 중 일부는 $1200^{\circ}C$ 이상 고온에서 소성되었다. 분석 대상 백자의 태토를 XRD 분석한 결과 모두 quartz와 mullite가 검출 되었으며 quartz와 mullite의 검출 비율은 모두 비슷하다. 출토된 백자 태토의 제겔식을 이용한 분석 결과 대상 백자 모두 같은 영역에서 군집하여 태토 원료와 제작 기법의 유사성을 확인할 수 있다. 또한 희토류 원소 분석 결과를 통하여 분석 대상 백자는 지질학적 성인이 동일한 모암으로 제작했음을 알 수 있다.

Keywords

References

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  2. A Characteristics Analysis of Archaeological Chemistry on the Ceramics Excavated from Kiln Site in Dongkok‐Town, Gimje in Korea vol.33, pp.2, 2017, https://doi.org/10.12654/JCS.2017.33.2.07
  3. Comparative Study on Material Characteristics of Joseon White Wares Excavated from Gangwon Wonju Province vol.33, pp.4, 2017, https://doi.org/10.12654/JCS.2017.33.4.01