化学组成对铁红分相釉的影响
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摘要
以钾长石、骨灰、三氧化二铁、煅烧滑石、石英、高岭土为原料制备铁红分相釉。探究SiO_2/Al_2O_3摩尔比、Fe_2O_3-P_2O_5组成引起的釉面性状变化。结合XRD以及扫描电镜(SEM)和能谱分析,对铁红釉的分相和析晶进行定性和定量的分析。研究结果表明:当SiO_2/Al_2O_3摩尔比为10,Fe_2O_3/P_2O_5摩尔比为2时,釉表面为分散规则大红花。SEM和EDS显示釉中存在液相分离而带来的组分不均匀的现象,主要表现为Fe元素组分的差异;经XRD结果证实,在富铁相中析出的红色晶体为Fe_2O_3。
Phase separation iron-red glaze was successfully prepared using potassium feldspar,bone ash,iron oxide,calcinedtalc,kaolin. Change of glaze properties caused by SiO_2/Al_2O_3 mole ratio and Fe_2O_3-P_2O_5 composition were studied. Combining XRD and scanning electron microscope( SEM) and energy spectrum analysis,qualitative and quantitative analysis of phase separation and crystallization were conducted. The results show that when the molar ratio of SiO_2/Al_2O_3 and Fe_2O_3/P_2O_5 are 10 and 2,respectively,pattern of regular red flowers can be achieved. SEM and EDS indicate that there is an inhomogeneous distribution of component in the glaze,which is mainly manifested on the difference in the component of Fe; XRD reveals that the red crystal in the iron-rich phase is Fe_2O_3.
Phase separation iron-red glaze was successfully prepared using potassium feldspar,bone ash,iron oxide,calcinedtalc,kaolin. Change of glaze properties caused by SiO_2/Al_2O_3 mole ratio and Fe_2O_3-P_2O_5 composition were studied. Combining XRD and scanning electron microscope( SEM) and energy spectrum analysis,qualitative and quantitative analysis of phase separation and crystallization were conducted. The results show that when the molar ratio of SiO_2/Al_2O_3 and Fe_2O_3/P_2O_5 are 10 and 2,respectively,pattern of regular red flowers can be achieved. SEM and EDS indicate that there is an inhomogeneous distribution of component in the glaze,which is mainly manifested on the difference in the component of Fe; XRD reveals that the red crystal in the iron-rich phase is Fe_2O_3.
引文
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[2]陈显求,黄瑞福,孙荆,等.铁红釉中多次液相分离的形态和各相的组成[J].硅酸盐学报,1984(2):236-242+265-266.
[3]陈显求,黄瑞福,陈士萍,等.铁红釉的液相分离[J].瓷器,1979(3):1-24+3.
[4]陈显求,黄瑞福,陈士萍,等.铁红釉液相分离的某些因素的影响[J].中国陶瓷,1981(1):1-7.
[5]杨长安.分相釉及其结构呈色的研究[D].西安:陕西科技大学,2016.
[6] Zhu J f,Shi P,Wang F. Preparation of separative-phase fancy glaze derived from iron ore slag[J]. Ceramics International,2016,42:5250-5257.
[7]包启富,董伟霞.铁红花釉的研制[J].中国陶瓷工业,2008(5):24-26.
[8]石小涛,章婷,范学运. CaO-SiO2-P2O5系铁红花艺术釉制备工艺研究[J].陶瓷学报,2010,31(3):507-512.