摘要
以“K2O-Al_2O_3-SiO_2”三元系统相图中低共熔点（985℃）附近的配方组成为基础配方,选取高岭土,石英,钾钠长石和锂瓷石为原料,考察黑滑石对瓷质砖性能和烧成温度的影响。借助SEM与XRD等测试仪器对材料的性能进行表征。研究结果表明：当黑滑石取代钾钠长石0.27 mol时,制备了烧成温度在1180～1200℃性能较优的瓷质建筑陶瓷样品,该样品各项性能可达到：烧成收缩6.37%,抗折强度80.85 Mpa,吸水率0.16%,体积密度为2.33 g/cm^3。相比于三元复合熔剂（1230℃）,引入黑滑石形成四元复合熔剂“K_2O-Na_2O-Li_2O-MgO”不仅可显著降低烧成温度,并可以拓宽烧结温度范围。
Based on ＂K2O-Na2O-Li2O-MgO＂ phase diagram eutectic point （985℃ ） nearby formula composition formula, kaolin clay, quartz, feldspar and lithium stone as the main materials, effects of black talc on the properties and firing temperatures of low-temperature porcelain ceramics were studied. The microstructure and properties of the material were characterized by SEM and XRD, etc. The results show that., when black talc is 0.27 mol replacement of feldspar amount at the sintemlg temperature 1180- 1200℃ , the properties of the samples reach the optimum values： the firing shrinkage of 6.37%, bending strength ol 80.85 MPa, water absorption of 0.16%, bulk density of 2.33 g/cm3. Compared with the ternary complex flux, the introduction of black talc for ＂K2O-Na2O-Li2O-MgO＂ fluxes system not only can significantly reduce the firing temperature, and broaden the sintering temperature range.
出处
《中国陶瓷》
CAS
CSCD
北大核心
2018年第2期46-50,共5页
China Ceramics
基金
国家自然科学基金项目(51562013)
