金属复合Al_2O_3基耐火材料的研究进展  

Development of metal containing Al_2O_3 based refractories

作　　者：刘新红[1] 叶方保[1] 石凯[1] 贾全利[1] 

机构地区：[1]郑州大学高温功能材料河南省重点实验室,郑州450052

出　　处：《耐火材料》2007年第2期137-140,共4页Refractories

摘　　要：介绍了金属复合Al2O3基耐火材料的研究进展,重点介绍了金属加入物对Al2O3基耐火材料性能的影响。加入金属可提高材料的常温和高温强度、断裂韧性、抗热震性和抗侵蚀性等,从而提高了材料的使用寿命。材料性能优化的原因是加入的金属反应生成了碳化物、氮化物和SiAlON(或AlON),以及少量金属熔融后的助烧结作用。Development of metal containing Al2O3 based refractories and the effects of metal on the properties of refractories were introduced.The strength at room and high temperature,fracture toughness,thermal shock resistance and corrosion resistance were improved with addition of metal,so the service life of the metal containing refractories is increased.Metal reacting with C or N2 forming carbides,nitrides and SiAlON （AlON）,and the sintering aids effect of small molten metal contribute to the property improvement of the materials.

关 键 词：金属复合 刚玉耐火材料 塑性 增韧 助烧剂 

分 类 号：TQ174.758[化学工程—陶瓷工业]