Corrosion Research on Ru Porcelain Glazes Excavated at Qingliangsi, Baofeng, China
Source abstract
Abstract
This paper examines two pieces of Ru porcelain glaze excavated from the Qingliangsi kiln site. Compared with the R1 glaze, the R2 glaze was fired at a lower temperature and cooled at a slower rate. The chemical composition, microstructure, and corrosion mechanisms of the two glazes were analyzed by optical microscopy (OM), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), micro-Raman spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction (XRD). The results show that the corrosion morphology of R1 glaze is mainly the dissolution of a three-dimensionally interconnected calcium (Ca)-rich phase around anorthite, and that of R2 glaze is mainly the dissolution of small droplets distributed in rows, including the dissolution of needle-like wollastonite precipitated by droplet aggregation. In addition, the dissolution of the glass phase and wollastonite crystals forms many white corrosion pits, and the physical and chemical interaction between the corroded glaze and the soil results in the deposition of contaminants that alters the color and texture of the glaze.
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Research context
OpenAlex topics: Cultural Heritage Materials Analysis · Building materials and conservation · Conservation Techniques and Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Cultural Heritage and History of Science and Technology, University of Science and Technology Beijing, Beijing 100083, China
International Joint Research Laboratory of Environmental and Social Archaeology, Shandong University, Qingdao 266237, China
Henan Provincial Institute of Cultural Heritage and Archaeology, Zhengzhou 450000, China
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