化学组成对茶叶末系釉微观结构及釉面效果的影响
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摘要
实验探究了n(Fe_2O_3)/n(MgO)和n(CaO)/n(MgO)对茶叶末系釉釉面性能的影响,并采用XRD、SEM-EDS和色度仪进行表征。实验结果表明:随着n(Fe_2O_3)/n(MgO)的提高可获得米白、蛋壳黄、茶叶末、仿古铜等艺术效果釉面;XRD与EDS结果表明釉中晶体为Ca-Mg-Fe-Al型混合辉石。随着n(CaO)/n(MgO)的增加,釉中晶体数量减少,分相作用增强,釉中分相结构由分散蠕虫状变化到连通蠕虫状再到孤立的圆点状液滴。当n(CaO)/n(MgO)大于2时,釉面b*值减小,这是由于分散相的瑞利散射作用,釉面泛蓝色。结晶与分相存在使得茶叶末系釉具备多种艺术效果。
Effect of n(Fe_2O_3)/n(MgO) and n(CaO)/n(MgO) on properties of tea-dust type glaze were investigated and characterized by XRD, SEM and colorimeter. The results show that color development of rice white, eggshell, tea dust, antique brass was obtained with increase of n(Fe_2O_3)/n(MgO). XRD and SEM-EDS showed that the main crystal in the glaze was Ca-Mg-Fe-Al mixed augite. With the increase of n(CaO)/n(MgO), the amount of crystals were decreased and the segregation tendency of the glaze was enhanced resulting in a transformation of phase segregation structure of dispersing worm-like to connected worm-like to isolated droplet. When n(CaO)/n(MgO) was greater than 2, the color parameter of b* was decreased due to Rayleigh scattering of the dispersed phases, which provided the glazes with blue tone. A variety of artistic effects of tea-dust type glazes could be obtained as a result of crystallization and phase separation.
Effect of n(Fe_2O_3)/n(MgO) and n(CaO)/n(MgO) on properties of tea-dust type glaze were investigated and characterized by XRD, SEM and colorimeter. The results show that color development of rice white, eggshell, tea dust, antique brass was obtained with increase of n(Fe_2O_3)/n(MgO). XRD and SEM-EDS showed that the main crystal in the glaze was Ca-Mg-Fe-Al mixed augite. With the increase of n(CaO)/n(MgO), the amount of crystals were decreased and the segregation tendency of the glaze was enhanced resulting in a transformation of phase segregation structure of dispersing worm-like to connected worm-like to isolated droplet. When n(CaO)/n(MgO) was greater than 2, the color parameter of b* was decreased due to Rayleigh scattering of the dispersed phases, which provided the glazes with blue tone. A variety of artistic effects of tea-dust type glazes could be obtained as a result of crystallization and phase separation.
引文
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[10]杨瑞强,周健儿,刘韩,等.SiO_2对K_2O-Na_2O-CaO-Al_2O_3-SiO_2-B_2O分相乳浊釉性能及结构的影响[J].中国陶瓷,2018,54(08):39-45.
[11]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.
[2]顾幸勇,方豪,宋仪杰.茶叶末结晶釉主晶相的研究[J].中国陶瓷,1989(2):6-9.
[3]孙国梁,吴国亮.烧成温度对茶叶末釉析晶及呈色的影响[J].陶瓷学报,2014(4):411-414.
[4]王静.中国古代透明青瓷釉自还原法仿制及呈色规律研究[D].西安陕西科技大学,2014.
[5]陈显求,孙洪巍.金,元时期旬邑窑茶叶末瓷的研究[J].陶瓷学报,1996(3):15-24.
[6]江鹏飞,李其江,吴军明,等.建窑与吉州窑素天目釉瓷的比较研究[J].陶瓷学报,2012,33(3):347-353.
[7]陈显求,黄瑞福,陈士萍,等.铁红釉的液相分离[J].中国陶瓷,1979(3):4-27+3.
[8]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).
[9]简丽勇,吕明.烧成制度对分相乳浊釉显微结构的影响[J].中国陶瓷,2015(5):69-74.
[10]杨瑞强,周健儿,刘韩,等.SiO_2对K_2O-Na_2O-CaO-Al_2O_3-SiO_2-B_2O分相乳浊釉性能及结构的影响[J].中国陶瓷,2018,54(08):39-45.
[11]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.