吉州窑绿釉的无铅化复现与呈色调控  

Lead-Free Reproduction and Color Regulation of Green Glazes From Jizhou Kiln

作　　者：温梦涛 张效华 岳振星 WEN Mengtao;ZHANG Xiaohua;YUE Zhenxing(School of Materials Science and Engineering,Shaanxi University of Science&Technology,Xi’an 710021,China;State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]陕西科技大学材料科学与工程学院,西安710021 [2]清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《硅酸盐通报》2024年第9期3407-3416,共10页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目(52273315);陕西省教育厅科技项目(21JT003);新疆建设兵团项目(2023AB013-04);清华大学新型陶瓷与精细工艺国家重点实验室开放课题(KF202212);陕西省重点研发计划(2024GX-YBXM-324)。

摘　　要：吉州窑作为宋代南方八大民窑之一,因绚丽的釉色而闻名于世。本文采用景德镇地区的传统陶瓷原料,以CuO为着色剂成功实现了吉州窑绿釉的无铅化制备,研究了CuO含量对铜釉色彩特性的影响。结果表明:随着CuO含量的增加,釉层粘度逐渐降低,釉面依次呈现淡青色、青绿色、绿色、墨绿色、蓝色。Cu^(2+)的呈色主要以绿色为主,但高浓度的Cu^(2+)作为玻璃改性剂破坏了SiO_(2)网络,增加了非桥氧的数量和Cu^(2+)周围氧离子的密度,此时Cu^(2+)的呈色主要为蓝色。掺入CuO后,样品均存在圆形和蠕虫状两种相分离结构。当CuO含量较高时,圆形相分离结构尺寸较小满足瑞利散射,产生蓝色乳光,加深釉面呈色;当CuO含量较低时,圆形相分离结构尺寸较大满足米氏散射,产生白色乳光。吉州窑无铅绿釉的呈色机制是铜离子价态和相分离结构协同耦合作用的结果。Jizhou kiln,one of the eight southern folk kilns of the Song Dynasty,is famous for its brilliant glaze colors.The traditional ceramic raw materials in Jingdezhen area were used to successfully realize the lead-free preparation of green glaze from Jizhou kiln with CuO as colorant,and the effect of CuO content on the color characteristics of copper glaze was also investigated.The results indicate that with the increase of CuO content,the viscosity of glaze layer gradually decreases,and the glaze surface shows light blue,green,dark green,and blue colors in sequence.Cu^(2+) is mainly green color,but the high concentration of Cu^(2+) as a glass modifier destroys the SiO_(2) network,increasing the amount of non-bridging oxygen and the density of oxygen ions around Cu^(2+),and the color of Cu^(2+) is mainly blue.After the addition of CuO,the samples exhibite circular and worm-like phase-separated structure.When the CuO content is higher,the smaller size of circular phase separation structure meets Rayleigh scattering,producing blue opalescence and deepening the glaze color.When the CuO content is lower,the larger size of circular phase separation structure satisfies Mie scattering and produces white milky light.The coloration mechanism of lead-free green glaze from Jizhou kiln results from the synergistic coupling effect of copper ion valence state and phase-separated structure.

关 键 词：吉州窑 无铅绿釉 CUO 相分离结构 离子配位 呈色机制 

分 类 号：TQ174[化学工程—陶瓷工业]