稀土氧化物对铝镁质浇注料中原位反应和性能的影响  

Effects of Rare Earth Oxides on In-situ Reaction and Properties of Alumina-magnesia Castables

作　　者：夏雨峰 贾正刚 姜延畅 员文杰 Xia Yufeng;Jia Zhenggang;Jiang Yanchang;Yuan Wenjie(Hubei Annaijie Lining Materials Co.,Ltd.,Hubei,441100;The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Hubei,430081;National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology,Wuhan University of Science and Technology,Hubei,430081)

机构地区：[1]湖北安耐捷炉衬材料有限公司,湖北441100 [2]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北430081 [3]武汉科技大学高温材料与炉衬技术国家地方联合工程研究中心,湖北430081

出　　处：《当代化工研究》2023年第22期32-34,共3页Modern Chemical Research

基　　金：襄阳市级重点科技计划项目“中频炉用高性能成型坩埚的研制与应用”(项目编号:2021ABH003600)。

摘　　要：为了保证铝镁质浇注料在高温烧结后的体积稳定性,探究稀土氧化物对铝镁质浇注料原位反应和性能的影响,分别将氧化钇和氧化铈加入浇注料和基质中进行对比。分析其物相组成、显气孔率、抗折强度等性能。结果表明,氧化钇和氧化铈的添加均会对铝镁质浇注料的体积稳定性产生不同程度的影响,同时会加速其原位反应,对铝镁质基质浇注料的影响更为突出。In order to ensure the volume stability of alumina-magnesia castables after sintering at high temperature,effects of rare earth ox-ides on in-situ reaction and properties of alumina-magnesia castables was investigated.Yttrium oxide and cerium oxide were added in overall and ma-trix of alumina-magnesia castables respectively.The properties such as phase composition,apparent porosity and cold modulus of rupture were ana-lyzed.The results show that the addition of yttrium oxide and cerium oxide can have influence on the volume stability of alumina-magnesia castables to a certain extent.Both of them could accelerate the in-situ reaction,especially for the matrix of alumina-magnesia castables without coarse aggregates.

关 键 词：铝镁质浇注料 稀土氧化物 性能 氧化钇 氧化铈 

分 类 号：TQ175[化学工程—硅酸盐工业]