2%CeO_2对Al_2O_3陶瓷涂层耐磨性的影响  

Effect of Cerium Dioxide on Wear Resistance of Alumina Coating

作　　者：孙方红[1] 马壮[2] 史广思[3] 宋晓龙[3] 李福永 

机构地区：[1]辽宁工程技术大学创新实践学院,辽宁阜新123000 [2]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000 [3]辽宁工程技术大学机械工程学院,辽宁阜新123000 [4]郑州煤矿机械集团股份有限公司,河南郑州450016

出　　处：《材料保护》2012年第7期29-30,43,共3页Materials Protection

基　　金：辽宁省教育厅创新团队项目(2009T044)

摘　　要：Al2O3陶瓷涂层脆性大、韧性差,应用受到一定的限制。加入适量的稀土氧化物CeO2优化了Al2O3陶瓷涂层的配方和工艺,研究了添加CeO2后Al2O3陶瓷涂层的界面形貌、组织结构和耐磨性。结果表明,添加CeO2,使Al2O3陶瓷涂层的致密性、结合力和耐磨性均得到了提高;CeO2的最佳添加量为2%。The application of Al2O3 ceramic coating is limited by its high brittleness and poor toughness. Thus a proper amount of CeO2 was introduced to optimize the formulation and technology for preparing Al2O3 ceramic coating. The interfacial morphology, microstructure and wear resistance of resultant CeO2-doped Al2O3 coating were investigated. Results show that introducing a proper amount of CeO2 contributes to improve the compactness, bonding strength to substrate and wear resistance of Al2O3 coating; and the optimal dosage of CeO2 is suggested as 2% (mass fraction).

关 键 词：AL2O3陶瓷涂层 CEO2 耐磨性 

分 类 号：TG174.44[金属学及工艺—金属表面处理]