Li Zihan, Yuan Feng, Cao Jianwen, Hein Anke
School of Archaeology, University of Oxford, Oxford, UK.
Institute of Ancient Ceramic, Jingdezhen Ceramic Institute, Jingdezhen, China.
Microsc Microanal. 2022 Sep 6:1-12. doi: 10.1017/S1431927622012375.
Searching for residue in the glaze of porcelain or stoneware is a difficult task because these glazes are high-fired, well vitrified, and nonporous. This paper analyzes the chemical composition of residue observed in glaze cracks of porcelain via SEM-EDS to determine how the crackle effect was produced, in particular, if it was intentionally created during production or the result of post-depositional processes. This study offers insights to a specific type of ancient Chinese porcelain called “Ge-type ware”, which has two different types of cracks, and whose origin has been debated for nearly 60 years because it has never been found at any kiln site. This paper analyzes the chemical composition of the two crack types, first using elemental mapping to ascertain the different mechanisms that produced these two crack types of the Heirloom Ge ware, and second using residue analysis and chemical fingerprinting to determine the provenance of this puzzling type of porcelain. In doing so, this paper demonstrates how the residue in the glaze of porcelain can be observed and analyzed via microchemical approaches and hopes to inspire more research using this technique in future.
在瓷器或炻器的釉层中寻找残留物是一项艰巨的任务，因为这些釉层经过高温烧制，玻璃化程度高且无孔隙。本文通过扫描电子显微镜-能谱仪（SEM-EDS）分析了在瓷器釉裂中观察到的残留物的化学成分，以确定裂纹效果是如何产生的，特别是它是在生产过程中有意制造的，还是沉积后过程的结果。本研究为一种名为“哥窑型瓷器”的中国古代瓷器提供了见解，这种瓷器有两种不同类型的裂纹，其起源已经争论了近60年，因为从未在任何窑址发现过。本文分析了这两种裂纹类型的化学成分，首先使用元素映射来确定产生传世哥窑这两种裂纹类型的不同机制，其次使用残留物分析和化学指纹识别来确定这种令人困惑的瓷器类型的来源。通过这样做，本文展示了如何通过微化学方法观察和分析瓷器釉层中的残留物，并希望在未来激发更多使用该技术的研究。
