Influence of Plasma Spray Parameters on the Microstruc-ture and Property of ZrO2-7 wt％Y203 Coating
The plasma sprayed ZrO2-7 wt％Y2O3 (7YSZ) coating has been widely applied in aircraft engine as a thermal barrier coating. In this study, the duplex TBC system (MCrAlY + 7YSZ) were deposited onto 304 stainless steel substrate by APS. Four principal spraying parameters during the deposition of 7YSZ coating were optimized by using orthogonal experimental design, including the stand-off distance, plasma power, preheating temperature and powder feeding rate. Their influences on the coatings microstructure, adhesion and its mechanical properties were studied and the optimized parameters were finally obtained. The results showed that the dependence of the spraying parameters on the properties of 7YSZ coating is highly correlated to the melting condition of the inflight particles.
7YSZ plasma spray melting condition
Li Hui Wang Benpeng Wei Qi Ji Xiaojian Li Zhuoxin
College of Materials Science and Engineering, Beijing University and Technology, Beijing 100124, China
国际会议
西安
英文
291-295
2011-05-11（万方平台首次上网日期，不代表论文的发表时间）