烧结法合成莫来石研究进展  

Research progress of mullite synthesized by sintering process

作　　者：张巍 ZHANG Wei(Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang Liaoning 110016,China)

机构地区：[1]中国科学院金属研究所,沈阳材料科学国家研究中心,辽宁沈阳110016

出　　处：《化工矿物与加工》2024年第5期52-69,共18页Industrial Minerals & Processing

基　　金：中国科学院金属研究所自主部署项目(E255L401)。

摘　　要：莫来石是一种铝硅酸盐矿物,具有较高的熔点,较低的热膨胀系数,良好的高温强度、抗热震性和抗蠕变性等性能,被广泛用作制备耐火材料、陶瓷等的原料。由于天然莫来石比较稀少,工业用莫来石主要是由人工合成的。目前,工业领域广泛使用的莫来石主要采用烧结法合成。简述了烧结法合成莫来石的原料种类,铝源和硅源可以通过不同的原料种类引入,包括化工原料、天然矿物、工农业固体废弃物等;介绍了不同原料合成莫来石的特点;概述了原料中杂质、添加烧结助剂、制备工艺等对合成莫来石的影响;展望了烧结法合成莫来石的重要研究方向。Mullite is an aluminosilicate mineral with high melting point,low coefficient of thermal expansion,good high-temperature strength,thermal shock resistance,and creep resistance.Mullite is widely used as raw material for preparing refractories,ceramics,etc.Due to the scarcity of natural mullite,industrial mullite is mainly synthesized artificially.At present,mullite widely used in the industrial field is synthesized by the sintering process.This paper reviews the types of raw materials used in the sintering process for synthesizing mullite;Aluminum and silicon sources can be introduced by different types of raw materials,including chemical raw materials,natural minerals,and industrial and agricultural solid wastes,etc.The characteristics of synthesized mullite from different raw materials are introduced.The effects of impurities in raw materials,addition of sintering aids,and preparation processes on the synthesis of mullite are summarized.The important research directions for the synthesis of mullite by the sintering process are prospected.

关 键 词：莫来石 烧结法 化工原料 杂质 烧结助剂 合成工艺 天然矿物 工农业固体废弃物 

分 类 号：TB321[一般工业技术—材料科学与工程]