釉烧工艺及氧化铁含量对钧瓷呈色及微观组织的影响  

Effect of Sintering Process and Additional Iron Oxide on the Coloring and Microstructures of Jun Porcelain

作　　者：朱聪旭[1,2] 周利航 陈志峰[1] 法文君[1] 冯铭华[1] 郑直[1,2] 

机构地区：[1]河南省微纳米能量储存与转换材料重点实验室,许昌学院表面微纳米材料研究所,许昌学院,许昌461000 [2]纳米功能材料及应用河南省协同创新中心,许昌461000

出　　处：《中国陶瓷》2015年第5期64-68 74,74,共6页China Ceramics

基　　金：许昌学院产学院专项项目(2014CXY14);许昌学院重点科研基金项目(2014077);河南省杰出青年基金(104100510001)

摘　　要：钧瓷的呈色效果与其高温窑变直接关联,分析其高温釉烧过程中的化学变化,可以进一步解释钧瓷的窑变,提高钧瓷釉烧成品率。通过在基体釉料中添加不同含量的氧化铁,借助X-射线粉末衍射(XRD)、扫描电子显微镜(SEM)、能谱分析(EDS)等检测手段,系统分析了氧化铁添加量、施釉方式、釉烧气氛及釉烧温度对钧瓷釉层的微观组织形貌、呈色及分相等的影响。结果显示,不同气氛下烧制的相同氧化铁含量的钧瓷试片呈色不同;氧化铁含量在1~3%范围内,呈色较好;伴随氧化铁含量的增加,钧瓷试片的析晶程度越高;蘸釉的施釉方式制备的钧瓷产品,呈色效果更优。The abundant coloring of Jun porcelain has a great relationship with furnace-transmutation at high temperature. By investigating its chemical changes, giving a theoretical explain to such a 'furnace transmutation' of Jun porcelain, the control-ability of the glaze-firing process could be improved. By controlling various glazefiring parameters including the addition quantity of ferric oxide, glaze-firing temperature, and atmosphere, we finally confirmed the optimum parameters of glaze-firing process at the current condition. By uses of XRD, SEM and EDS analysis, we systematically studied the effect of the ferric oxide additive on the coloring, micro-structure, and phase separation of the Jun porcelain. The results show that Jun porcelain with additional iron oxide calcined in different atmosphere shows different coloring. when the content of additional iron oxide is in the range of 1% and 3%, Jun porcelain shows excellent coloring in both oxidation and reduction atmosphere. In the other hand, the content of ferric oxide in Jun porcelain also affected the crystallization of Jun glaze. Higher concentration of ferric oxide facilitates the crystallization. The immersed glaze showed better coloring effect and repeat-ability after glaze-firing of Jun porcelain, compared with other enamelling.

关 键 词：釉料 窑变 呈色 氧化铁 析晶 

分 类 号：TQ174.43[化学工程—陶瓷工业]