Microstructures and Properties of Thermal Barrier Coatings Plasma-Sprayed by Nanostructured Zirconia

摘要：

In gas turbine engine, the study of thermal barrier coatings (TBCs) has always been paid more attention because it can effectively reduce metal interface temperatures, reduce oxidation and extend life. In this paper, the microstructures and properties of TBCs plasma-sprayed by nanostructured zirconia were investigated. The TBCs had higher adhesive strength, better thermal shock resistance and micro-cracking resistance to compare with that of conventional TBCs of magnesia and yttria stabilized zirconia, which was due to closed packed structures with a small amount of laminar structures and cavities. The increase of quantities of thermal growth oxide (TGO) was mainly responsible for deteriorating the properties of TBCs.

关键词： Nanostructured zirconia Thermal barrier coatings (TBCs) Thermal shock resistance property Adhesive strength Thermal growth oxide (TGO)

作者: CUI Tong WANG Ji-jie GUAN Ren-guo Chen Li-qing QIU Guan-ming

作者单位: School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang 110136 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China School of Materials and Chemical Engineering, Changchun University of Science and Technology, Changc

会议类型: 国际会议

会议名称: 中瑞(典)双边结构材料科技研讨会

会议地点: 北京

会议语种:英文

页码: 116-120

在线出版日期: 2007-09-18（万方平台首次上网日期，不代表论文的发表时间）