陶瓷釉的矿物学特征研究

A Study on the Mineralogical Characteristics of Ceramic Glazes

应用原子吸收光谱 (AAS) ,X射线衍射 (XRD)和电子自旋共振 (ESR)方法对工业及民用陶瓷釉进行了研究。实验表明 :陶瓷釉的主要化学成分为Al2 O3、SiO2 ,少量为K2 O、Na2 O、MgO、CaO和微量的TiO2 、Fe2 O3、S等 ;矿物相有石英、伊利石、方解石、长石、高岭石和滑石等。生釉经不同温度焙烧后 ,无论是化学成分、矿物相、微量杂质元素的价态及含量均发生了变化。讨论了在不同温度下的化学组分、含量、生成矿物相的种类以及杂质离子在矿物内部的电荷转移状态。这些结果对改进陶瓷釉的配方 ,探索最佳焙烧温度 ,生产高质量的陶瓷产品 ,有着实际的指导意义。

This paper introduces the research results of ceramic glaze s used in industry and human life. The analyses show that the major compositi ons of ceramic glazes are Al 2O 3, SiO 2; a small quantity of K 2O, Na 2O, CaO, MgO; and a trace amount of TiO 2, Fe 2O 3, S etc. The major minerals a r e quartz, illite, calcite, feldspar, kaolinite, and talc etc. After baking the raw glazes at differnt temperatures, their chemical compositions, mineral phases and valence states of trace impurity elements are changed. This paper discusse s these changes cau sed by baking at different temperatures. The results are significant in improvin g prescription for ceramic glazes, exploring the optimum temperature of baking a nd manufacturing the high quality ceramic products.