J. Mater. Sci. Technol. ›› 2007, Vol. 23 ›› Issue (04): 449-456.

• 论文 • 上一篇    下一篇

Overview on the Development of Nanostructured Thermal Barrier Coatings

蒋显亮   

  1. Institute of Surface and Coatings Technology;Central South University; Changsha; 410083; China
  • 收稿日期:2007-02-09 修回日期:2007-04-11 出版日期:2007-07-28 发布日期:2009-10-10
  • 通讯作者: 蒋显亮

Overview on the Development of Nanostructured Thermal Barrier Coatings

Xianliang JIANG, Chunbo LIU, Feng LIN   

  1. School of Materials Science and Engineering, Central South University, Changsha 410083, China...
  • Received:2007-02-09 Revised:2007-04-11 Online:2007-07-28 Published:2009-10-10
  • Contact: Xianliang JIANG

关键词: zirconia, thermal, barrier, coating, plasma

Abstract: Thermal barrier coatings (TBCs) have successfully been used in gas turbine engines for increasing operation temperature and improving engine efficiency. Over the past thirty years, a variety of TBC materials and TBC deposition techniques have been developed. Recently, nanostructured TBCs emerge with the potential of commercial applications in various industries. In this paper, TBC materials and TBC deposition techniques such as air plasma spray (APS), electron beam physical vapor deposition (EB-PVD), laser assisted chemical vapor deposition (LACVD) are briefly reviewed. Nanostructured 7–8 wt pct yttria stabilized zirconia (7-8YSZ) TBC by air plasma spraying of powder and new TBC with novel structure deposited by solution precursor plasma spray (SPPS) are compared. Plasma spray conditions, coating forming mechanisms, microstructures, phase compositions, thermal conductivities, and thermal cycling lives of the APS nanostructured TBC and the SPPS nanostructured TBC are discussed. Research opportunities and challenges of nanostructured TBCs deposited by air plasma spray are prospected.

Key words: zirconia, thermal barrier coating, plasma spray, nanostructure