环保型分相花釉的微观结构控制及机理研究

According to the fact that high quality glaze raw materials are increasingly exhausted and the problems that the glaze color stability is poor and the pollution of the preparation process is serious and the phenomenon of environmental pollution caused by a lot of slag accumulation, this research proposal aims to prepare series of fancy glazes with different gorgeous appearance, high saturation and high gloss, using iron slag substituting coloring oxide and part of the raw materials, with or without a small amount of other common coloring oxides, in different phase-separating systems, by the phase-separating coloring method. The effects of raw materials pretreatment method, glaze composition and the temperature on the coloring appearance of the glaze will be studied systematically. The relationship between glaze composition, droplet structure and glaze color characteristics will be explored. The valence and coordination state of the coloring element diffused into the droplet will be analyzed. According to the basic theories of diffusion dynamics, thermodynamic theory of phase separation and crystal chemistry, the coloring mechanism of the glaze will be researched. This project will help to save mineral resources, decrease production costs, release great pressure on the environment caused by the lots of waste slag, respond positively to the call of our country that ceramics industry should adopt green production. This project also will provide the theoretical basis for the preparation method innovation of ceramic glaze.

针对高品质釉用原料日益枯竭、釉料呈色稳定性差、制备过程污染严重的问题以及大量矿渣占用土地、污染环境且不能被广泛利用的现象，拟采用铁矿渣替代釉用着色氧化物及部分原料，基于不同分相系统，不添加或添加少量其它着色氧化物，利用分相呈色法，以期获得兼具高饱和度、高光泽度、呈色性能稳定、具有不同绚丽色彩的分相花釉。系统研究原料预处理方法、釉料组分、温度制度等工艺因素；探索釉料组成-微观结构-釉面呈色特点之间的关系；分析扩散至熔滴相中的着色元素价态与配位状态对釉面呈色效果的影响。依据扩散动力学、分相热力学、结晶化学等基础理论，研究添加铁矿渣的釉料通过分相呈色法制备高品质、性能稳定花釉的呈色机理。本项目的顺利实施，有助于节约矿物资源，降低釉料生产成本，减轻矿渣对环境构成的巨大压力，为实现工业矿渣的资源化利用提供理论依据，也将为色釉料制备方法的创新提供一定的科学基础。

面对陶瓷行业釉用原料日益紧张、釉面呈色稳定性差、釉料制备过程环境污染严重等一系列问题，本项目研究了不同类型的分相基础釉系统，并在此基础上，以铁矿渣替代釉用着色氧化物，不添加或添加少量价格低廉的着色氧化物，采用分相呈色法制备了高饱和度、呈色性能稳定的单色或具有不同绚丽色彩的仿古艺术釉。系统研究了矿渣预处理方法、釉料组分、温度制度等工艺因素对釉面呈色的影响；探索釉料组成-微观结构-釉面呈色效果之间的关系；分析着色元素价态对釉面呈色效果的影响。依据扩散动力学、分相热力学、结晶化学等基础理论，讨论了添加铁矿渣的釉料通过分相呈色法制备高品质、性能稳定色釉的呈色机理。结果表明，采用分相呈色法可以在一定程度上提高釉面品质，增加呈色的稳定性；基础釉中外加铁矿渣的量、烧成气氛、釉层厚度等均对釉面质量及呈色效果有显著影响。本项目的顺利实施，有助于节约矿物资源，降低釉料生产成本，减轻矿渣堆积对环境构成的巨大压力。研究结果为实现工业矿渣的资源化利用提供理论依据，也将为色釉料制备方法的创新提供一定的科学基础。