烧成制度对高铝粉煤灰发泡陶瓷孔结构的影响  

Effect of Firing System on the Pore Structure of High Alumina Fly Ash Foamed Ceramics

作　　者：范建成 郭振宇 华培宇 吕宝伟 池国恒 张圣杰 周立斌 FAN Jian-cheng;GUO Zhen-yu;HUA Pei-yu;LYU Bao-wei;CHI Guo-heng;ZHANG Sheng-jie;ZHOU Li-bin(Inner Mongolia Advanced Ceramic Design Institute Co.,LTD.,Ordos 017000,China)

机构地区：[1]内蒙古先进陶瓷设计院有限公司,鄂尔多斯017000

出　　处：《中国陶瓷》2024年第8期55-61,共7页China Ceramics

基　　金：内蒙古准格尔旗科技成果转化项目(2022CG-02)。

摘　　要：以准格尔地区的高铝粉煤灰、准格尔周边地区钾长石为主要原料制备发泡陶瓷,探究了不同烧成制度(最高烧成温度、保温时间)对发泡陶瓷样品孔结构(孔均匀度、孔径、表观孔壁厚度)以及体积密度、抗压强度、吸水率的影响规律。研究结果表明,最高烧成温度和保温时间对粉煤灰基发泡陶瓷的体积密度、抗压强度、吸水率影响较大,在烧成范围内,升高烧成温度和延长保温时间会使烧成样品孔径增大,孔均匀度提升,孔壁变薄,体积密度降低,抗压强度降低,吸水率增大。This article focuses on the preparation of foamed ceramics using high-alumina fly ash from the Zhungeer region and potassium feldspar from the surrounding area of Zhungeer as the main raw materials.It explores the influence of different firing systems(maximum firing temperature,holding time)on the pore structure(pore uniformity,pore size,apparent pore wall thickness)of foamed ceramic samples,as well as their bulk density,compressive strength,and water absorption rate.The research results indicate that the maximum firing temperature and insulation time have a significant impact on the compressive strength,bulk density,and water absorption rate of fly ash based foam ceramics.Within the firing range,increasing the firing temperature and prolonging the holding time will increase the pore size,improve pore uniformity,create thinner pore walls,decrease bulk density,reduce compressive strength,and increase the water absorption rate of the fired samples.

关 键 词：高铝粉煤灰 发泡陶瓷 烧成温度 保温时间 孔结构 

分 类 号：TQ536.4[化学工程—煤化学工程] TQ174.7