不同熔剂体系制备的陶瓷岩板及其性能

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (9): 3386-3398.

不同熔剂体系制备的陶瓷岩板及其性能

赵存河^1,2, 聂光临^1,2, 刘一军^1,2, 左飞³, 庞伟科^1,2, 汪庆刚^1,2, 包亦望⁴

1.蒙娜丽莎集团股份有限公司,佛山 528211;
2.广东省大尺寸陶瓷薄板企业重点实验室,佛山 528211;
3.广东工业大学机电工程学院,广州 510006;
4.中国建筑材料科学研究总院有限公司绿色建筑材料国家重点实验室,北京 100024

收稿日期:2024-02-02 修订日期:2024-04-10 出版日期:2024-09-15 发布日期:2024-09-19
通信作者: 聂光临,博士,高级工程师。E-mail:buildingmaterials8@163.com
刘一军,博士,教授级高级工程师。E-mail:235036388@qq.com
作者简介:赵存河(1972—),男,高级工程师。主要从事新型建筑陶瓷材料的研究。E-mail:1063328626@qq.com
基金资助:
广东省基础与应用基础研究基金(2023A1515012676);广东省科技计划项目(2022B1212020001)

Ceramic Slabs Prepared Using Different Flux System and Its Properties

ZHAO Cunhe^1,2, NIE Guanglin^1,2, LIU Yijun^1,2, ZUO Fei³, PANG Weike^1,2, WANG Qinggang^1,2,BAO Yiwang⁴

1. Monalisa Group Co., Ltd., Foshan 528211, China;
2. Guangdong Provincial Key Laboratory of Large Ceramic Plates, Foshan 528211, China;
3. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China;
4. State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China

Received:2024-02-02 Revised:2024-04-10 Published:2024-09-15 Online:2024-09-19

摘要/Abstract

摘要： 本文利用钾钠质与钙镁质原料配制了SiO₂-Al₂O₃-K₂O(Na₂O)(K₂O-Na₂O)与SiO₂-Al₂O₃-CaO-MgO(CaO-MgO)体系陶瓷,系统探究了熔剂体系(CaO-MgO、K₂O-Na₂O)在不同烧结温度(1 110～1 210 ℃)下对陶瓷岩板烧结性能和力学性能的影响,并利用XRD和SEM研究陶瓷岩板的物相组成和显微结构演变规律。结果表明:CaO-MgO与K₂O-Na₂O体系陶瓷的最佳烧结温度分别为1 170、1 150 ℃,钙镁质原料的引入导致CaO-MgO体系陶瓷的烧成收缩率与体积密度均低于K₂O-Na₂O体系陶瓷,且CaO-MgO体系陶瓷中气孔尺寸与含量均大于K₂O-Na₂O体系陶瓷;钙镁质原料的引入会促进CaO-MgO体系陶瓷中钙长石与α-堇青石的形成,且可以大幅度提升CaO-MgO体系的结晶相含量(质量分数为75.66%,较K₂O-Na₂O体系高56%)。高结晶相含量导致的弥散强化效果大于气孔对强度的劣化作用,CaO-MgO体系的弯曲强度为(56.9±2.6) MPa、断裂功为(183.2±9.5) J/m²、极限应变为(7.4±0.1)×10^-4、比强度为(24.9±1.1) kN·m·kg^-1,较K₂O-Na₂O体系分别提高了15%、25%、11%、23%,这说明CaO-MgO熔剂体系陶瓷更加适用于高强韧、高柔性陶瓷岩板的制备。

关键词: 陶瓷岩板, 熔剂体系, 烧成温度, 力学性能, 弯曲强度, 断裂功, 物相组成, 微观结构

Abstract: In this work, the K-Na and Ca-Mg based raw materials were used to prepare SiO₂-Al₂O₃-K₂O(Na₂O)(K₂O-Na₂O) and SiO₂-Al₂O₃-CaO-MgO(CaO-MgO) system ceramics, respectively. The impacts of flux systems (CaO-MgO, K₂O-Na₂O) on sintering characteristic and mechanical properties of ceramic slabs prepared at different firing temperatures (1 110～1 210 ℃) were investigated systematically, and the evolution rule of phase composition and microstructure was studied by XRD and SEM. The results show that the optimal firing temperatures for CaO-MgO and K₂O-Na₂O system ceramics are 1 170 and 1 150 ℃, respectively. The introduction of Ca-Mg based raw materials would lead to the lower firing shrinkage and bulk density of CaO-MgO system ceramics compared to K₂O-Na₂O system ceramics, meanwhile the pore size and content in CaO-MgO system ceramics are larger than those in K₂O-Na₂O system. The formation of anorthite and α-cordierite in CaO-MgO system ceramics is promoted by the introduction of Ca-Mg based raw materials, and the crystalline phase content of CaO-MgO system ceramics is significantly increased to be 75.66%(mass fraction), which is 56% higher than that of K₂O-Na₂O system. The dispersion strengthening effect caused by high crystalline phase content is greater than degradation effect of pore on mechanical strength. The flexural strength of CaO-MgO system ceramics is (56.9±2.6) MPa, fracture energy is (183.2±9.5) J/m², failure strain is (7.4±0.1)×10^-4 and specific strength is (24.9±1.1) kN·m·kg^-1, which are 15%, 25%, 11%, and 23% higher than those of K₂O-Na₂O system ceramics, respectively, indicating that the CaO-MgO flux system is more suitable for the manufacturing of high strength, toughness, and flexibility ceramic slabs compared with the traditional K₂O-Na₂O system.

Key words: ceramic slab, flux system, firing temperature, mechanical property, flexural strength, fracture energy, phase composition, microstructure

中图分类号:

TU523

赵存河, 聂光临, 刘一军, 左飞, 庞伟科, 汪庆刚, 包亦望. 不同熔剂体系制备的陶瓷岩板及其性能[J]. 硅酸盐通报, 2024, 43(9): 3386-3398.

ZHAO Cunhe, NIE Guanglin, LIU Yijun, ZUO Fei, PANG Weike, WANG Qinggang,BAO Yiwang. Ceramic Slabs Prepared Using Different Flux System and Its Properties[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(9): 3386-3398.

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