龙泉青瓷釉的组成、熔体结构和高温黏度的关系  

The Relationship Between the Composition,Melt Structure and High Temperature Viscosity of Longquan Celadon Glaze

作　　者：刘干平 李刘旒 LIU Ganping;LI Liuliu(Longquan Dingqing Celadon Workshop,Longquan 323700,Zhejiang,China)

机构地区：[1]龙泉市鼎青青瓷坊,浙江龙泉323700

出　　处：《中国陶瓷工业》2024年第1期23-28,共6页China Ceramic Industry

摘　　要：以龙泉窑梅子青釉化学组成为基础,分别用2%各种氧化物代替2%SiO_(2),配制七种釉料。通过釉料熔融实验分别确定釉熔体的始熔温度、全熔温度和流动温度;通过施釉制品烧成试验,观察各烧成制品的釉面外观质量、釉层气泡和晶体的变化情况,制品底部釉层积釉程度及蚯蚓纹分布情况,并结合熔体分子结构理论,揭示了SiO_(2)、Al_(2)O_(3)、K_(2)O、Na_(2)O、CaO、MgO和Fe_(2)O_(3)等七种氧化物对釉熔体高温黏度的影响。增加SiO_(2)或Al2O3含量,会增加熔体的高温黏度,其中,Al_(2)O_(3)的影响程度更大;而增加K_(2)O、Na_(2)O、CaO、MgO、Fe_(2)O_(3)中任一氧化物的含量,均会使得釉熔体的高温黏度降低,其中:CaO的影响程度最大;MgO的影响程度最小。K_(2)O使得釉的熔融范围扩大;CaO使得釉的熔融范围缩小。Based on the chemical composition of plum green glaze in Longquan kiln,2% of various oxides were used instead of 2%SiO_(2)in preparing seven kinds of glazes.The initial melting temperature,full melting temperature and flow temperature of the glaze melt were determined by glaze melting experiments.The glaze appearance quality,glaze bubbles and crystal changes,glaze layer glaze degree and earthworm pattern distribution at the bottom of the product were observed through the firing experiments of the glazed products.Combined with the theory of molten molecular structure of the melt,the effect of seven oxides,namely SiO_(2),Al_(2)O_(3),K_(2)O,Na_(2)O,CaO,of MgO and Fe_(2)0_(3) on the high temperature viscosity of the glaze melt was revealed.Increase of the SiO_(2) or Al_(2)O_(3) content will increase the high temperature viscosity of the melt,of which the influence of Al_(2)O_(3) is greater.Increase of the content of any of the monoxides in K_(2)O,Na_(2)O,CaO,MgO,Fe_(2)O_(3) reduces the high temperature viscosity of the glaze melt,of which CaO has the greatest degree of influence,and MgO has the least effect,and KO makes the melting range of the glaze expand while CaO makes the melting range of the glaze narrow.

关 键 词：龙泉青瓷 梅子青釉 氧化物 釉熔体 高温黏度 

分 类 号：TQ174.614[化学工程—陶瓷工业]