燃烧环境中自由原子与游离基对钧红釉呈色影响及其机理研究

With respect to the research of the traditional ceramic structure and performance influenced by oxidation, reduction and neutral firing atmosphere, both in home and abroad, the project put forward a new way of firing atmosphere which include a large number of highly reactive free atoms and free radicals existing in the combustion environment. The type of free atoms and free radicals in the environment and the concentration distribution are detected using LIFS technology using different fuel under different conditions. The controlled free atoms and free radicals are obtained by the strong ionization discharge method. The various common combustion states can be simulated. Using Jun red glaze as the research object, the effect of simulated combustion environment on the calcined structure, performance and the color of Jun red glaze is researched. The color glass ion and matrix of local structure is studied by EXAFS, NMR and XPS. The relationship between the combustion environment, color ion local structure and the color is established. The effect mechanism of free the free atoms and free radical on the color of Jun red glaze is obtained. Project research would be to break through the limitations of the knowledge of traditional firing atmosphere, to deepen the theoretical basis of ceramic firing atmosphere, to promote the ceramics firing from experience to science.

针对目前国内外在研究烧成气氛对传统陶瓷结构性能影响时仅考虑氧化、还原及中性气氛的现状，提出将燃烧环境中大量高活性的自由原子与游离基纳入对烧成气氛变化影响因素的新思路。利用LIFS技术探测不同燃料在不同条件下燃烧环境中自由原子与游离基的种类与浓度分布。采用强电离放电方法获得可控自由原子与游离基，模拟各种常见燃烧环境的自由原子与游离基状态。以钧红釉为研究对象，研究模拟燃烧环境对煅烧所得试样的结构、性能及呈色的影响；利用EXAFS、NMR、XPS等结构检测手段研究试样中显色离子与母体玻璃的局域结构，建立燃烧环境、显色离子局域结构、呈色效果三者之间的相互联系，获得自由原子与游离基对钧红釉呈色影响的机理。项目研究将能突破对传统烧成气氛认识的局限，深化陶瓷烧成气氛的理论基础，推动陶瓷的烧成从经验迈向科学。

针对目前国内外在研究烧成气氛对传统陶瓷结构性能影响时仅考虑氧化、还原及中性气氛的现状，本项目研制了一套燃烧环境模拟装置系统，并在此装置中进行了燃料配方、烧成制度及自由基等因素的改变对钧红釉呈色的影响进行了大量实验；分析探讨了自由基及不同燃料种类及不同的“燃料配方”等因素对钧红釉呈色的影响规律；对制备的钧红釉试样进行了微观测试分析，分析了其影响钧红釉呈色的机理。研究结果表明，不同燃料及其燃烧产生的不同自由基对钧红釉呈色影响很大；钧红釉的分相及不同自由基引起的试样中Cu2+和Cu+比例的明显变化，是导致样品呈色差异的关键原因。受本项目资助发表了论文7篇（其中SCI收录4篇），出版著作一本，获得授权发明专利和实用新型专利各1项。项目成果初步突破了现有的气氛烧成理论，具有一定的学术价值和科学意义；应用研究成果试制出了效果良好的钧红釉产品，成果中的两个专利已经应用到陶瓷烧成设备中，研究成果具有较好的应用价值。