EB-PVD热障涂层皱曲问题研究进展  

Investigation and Development of Rumpling of EB-PVD Thermal Barrier Coatings

作　　者：何伶荣[1,2] 张坤[1] 陈光南[1] 

机构地区：[1]中国科学院力学研究所先进制造工艺力学重点实验室,北京100190 [2]中国科学院研究生院,北京100190

出　　处：《新技术新工艺》2010年第4期67-71,共5页New Technology & New Process

基　　金：国家自然科学基金重点项目(50531060);面上项目(50471087)

摘　　要：热障涂层皱曲是指在高温循环载荷下陶瓷表层/粘结层界面甚至陶瓷层表面发生的凸起或凹陷现象。综合国内外最新的有关皱曲现象的报道,系统地介绍了电子束物理气相沉积(EB-PVD)热障涂层皱曲行为。综述了皱曲的特点、研究历史和研究进展,从微观机理、研究方法和皱曲对涂层性能影响3个方面进行了分析,指出了可行的研究发展方向。Rumpling of thermal barrier coatings is the roughening phenomenon on the interface of ceramic top coat and bond coat or on the surface of top coat those are all under thermal cycling. The rumpling behavior of electron beam physical vapor deposition （EB-PVD） thermal barrier coatings was systematically introduced based on corresponding up to date re- ports at home and abroad. The characteristics, researching history and progress of rumpling were synthetically stated from aspects of micro-mechanism, researching methods and influence on the performance of coatings were also introduced. The feasible studying trend was provided.

关 键 词：热障涂层 皱曲 电子束物理气相沉积(EB PVD) 柱状晶 

分 类 号：TB35[一般工业技术—材料科学与工程]