STUDY ON PREPARATION TECHNOLOGIES OF THERMAL BARRIER COATINGS

Tao Wang (), Ning Wang, Yang Li (), Hao Wang (), Jie Tang () and Yunshan Wang ()
Additional contact information
Tao Wang: Mechanical Engineering Department, Civil Aviation University of China, Tianjin 300300, P. R. China
Ning Wang: Mechanical Engineering Department, Civil Aviation University of China, Tianjin 300300, P. R. China
Yang Li: Mechanical Engineering Department, Civil Aviation University of China, Tianjin 300300, P. R. China
Hao Wang: CETO, Civil Aviation University of China, Tianjin 300300, P. R. China
Jie Tang: Mechanical Engineering Department, Civil Aviation University of China, Tianjin 300300, P. R. China
Yunshan Wang: Research Center of Laser Technology, Tianjin Polytechnic University, Tianjin 300387, P. R. China

Surface Review and Letters (SRL), 2017, vol. 24, issue 04, 1-15

Abstract: Thermal barrier coatings (TBCs) is one of the main key technology for the high-pressure turbine blades which are the main components of the high-performance aerospace engines. It offers protection for underline metallic components from corrosion, oxidation and localized melting by insulating the metal from hot gases in the engine core. The properties and lifetime of TBCs are greatly influenced by the preparation technology, which includes plasma spraying (PS), physical vapor deposition (PVD) and laser re-melting (LM). In this paper, three technologies used to prepare the TBCs are reviewed. Resulting features of coating fabricated by each technology are also discussed such as: the porosity, the thermally grown oxide (TGO), the erosion resistance, the thermal shock and so on. Especially, it is pointed out that the performances of gradient coating and nano-coating are better than the traditional coatings. In addition, it is widely accepted that laser can be applied to re-melt the PS coating and even directly clad the gradient coating. In the future, the traditional preparation technology should be improved continually in order to enhance the coating lifetime, enhance the properties of coating and lower the cost of process. Moreover, the researches on gradient-nano-structured coatings preparation are absent and should be done with emphasis since the nano-structure and gradient structure can both benefit the lifetime and properties of coatings.

Keywords: Aero-engine; TBCs; nano-structure; gradient coating; plasma spraying; physical vapor deposition; laser (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X17300040
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:24:y:2017:i:04:n:s0218625x17300040

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X17300040

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().