“K2O-Na2O-CaO-MgO-B2O3”复合熔剂熔融特性及在建筑陶瓷中的性能影响  

Study on Fusing Properties and Application in Building Ceramics of“K2O-Na2O-CaO-MgO-B2O3”Composite Flux

作　　者：包启富 董伟霞 周健儿 吴佳辰 BAO Qifu;DONG Weixia;ZHOU Jianer;WU Jiachen(School of Met erials Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,China)

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,景德镇333403

出　　处：《中国陶瓷》2020年第10期50-54,62,共6页China Ceramics

基　　金：江西省教育厅项目(GJJ190707);国家自然科学基金(51562013)。

摘　　要：以钾长石、钠长石、硅灰石、硼钙石等为主要熔剂原料,用硼钙石取代部分钾钠长石后,考察了硼钙石对“K2O-Na2O-CaO-MgO-B2O3”五元复合熔剂的熔融特性及性能影响,然后将其性能较优的五元复合熔剂组成应用于建筑陶瓷坯体中,考察了烧成温度对其陶瓷产品性能的影响。研究结果表明:相比未添加硼钙石的四元复合熔剂样品(熔融温度1100-1150℃),五元复合熔剂样品的熔融温度降低到了1080~1130℃。将其应用于建筑陶瓷坯体中,不仅使建筑陶瓷降低了烧成温度,而且拓宽了其烧成温度范围。In this paper, using potassium feldspar, albite, wollastonite and borocalcite, etc as the main raw materials, "K2O-Na2O-CaO-MgO-B2O3" composite flux system was prepared by replacing some potassium and albite with borocalcite. Effects of borocalcite content on the melting characteristics and properties of "K2O-Na2O-CaO-MgO-B2O3" composite flux were studied. Then the optimum flux composition was applied in the building ceramic and effects of firing temperature on the properties of the building ceramic products was investigated. The results show that the melting temperature of the five-component composite flux sample is reduced to 1080 ~ 1130 ℃, compared with the quaternion composite flux sample without borocalcite(sintering melting temperature of 1100 ~ 1150 ℃), which not only reduces the firing temperature, but also broadens the firing temperature range of building ceramics.

关 键 词：“K2O-Na2O-CaO-MgO-B2O3”五元复合熔剂 硼钙石 熔融特性 建筑陶瓷 

分 类 号：TQ174.47[化学工程—陶瓷工业]