玻璃态基体中二价铁离子配位构型与光学特性研究

我国传统青瓷釉色的改进与变化影响着制瓷产业的兴衰发展和工艺演进，相关研究具有重要的学术价值。铁元素赋予了青釉丰富的颜色装饰效果，因此铁离子在玻璃态基体中的光学特性一直是古陶瓷研究领域中的热点问题。过渡金属离子显色机理研究表明，化学价态和近邻原子配位构型决定着离子的光学性质。基于价态分析可以明确地解释青釉发展早期阶段釉色不断纯粹的过程，而成熟青釉颜色的多样性则需要从分子配位构型的角度出发提出进一步的机理解释，但目前相关研究较少。本项目期望以典型传统青釉为研究对象，利用X射线吸收精细结构谱、成分分析及紫外可见近红外光谱等多种实验手段，表征分析玻璃态釉层中铁离子近邻原子分布情况及显色效果、元素组成和烧成温度等信息，研究烧制工艺、配位构型和光学特性之间的关联关系，从分子角度深入阐述铁离子在传统青釉中的显色机理，为我国青釉工艺发展研究和传统制釉技术的复原提供有价值的参考信息和理论依据。

The improvement and change of glaze color were of great significance to the development of the Chinese traditional celadon industry and the evolution of manufactory technology. Related research has important academic value. Iron ions can bring color decoration effect to traditional celadon, so the optical properties of iron ions in glassy glazes have always been a research topic of interest in the field of ancient ceramics. Previous studies on the coloration mechanism of transition metal ions suggested that the valence and coordination structure of the ion could determine its optical properties. The change of valence state can explain the improvement of glaze color in the early stages of celadon. However, the color diversity of mature celadon glaze needs to be further explained based on the coordination structure. Currently, there are fewer studies in this way. This project is expected to take typical celadon glazes as the research object, and analyze the coordination structure and optical characteristics of iron ions in the glassy glazes, composition and firing temperature etc. with experimental methods such as X-ray absorption fine structure, elemental analysis and UV-Vis-NIR spectrophotometry. The purpose is to reveal the relationship between the firing process, coordination structure and optical characteristics of iron ions. We hope to further explain the coloration mechanism of iron ions in the traditional celadon glaze from molecular perspective. This study is expected to provide valuable reference information and theoretical basis for the study on craft development in celadon glaze and the restoration of traditional glaze technology.