The non destructive and nano-microstructural characterization of thermal-barrier coatings

被引：13

作者：

Sohn, YH ^{[1
]}

Jayaraj, B

Laxman, S

Franke, B

Byeon, JW

Karlsson, AM

机构：

[1] Univ Cent Florida, AMPAC, Orlando, FL 32816 USA

[2] Univ Cent Florida, Dept Mech Mat & Aerosp Engn, Orlando, FL 32816 USA

[3] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA

来源：

JOM | 2004年 / 56卷 / 10期

关键词：

D O I：

10.1007/s11837-004-0292-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The durability of thermal barrier coatings (TBCs) plays an important role in the service reliability and maintainability of hot-section components in advanced turbine engines for aerospace and utility applications. Photostimulated luminescence spectroscopy (PSLS) and electrochemical impedance spectroscopy (EIS) are being concurrently developed as complimentary nondestructive evaluation (NDE) techniques for quality control and life-remain assessment of TBCs. This paper discusses recent achievements in understanding the residual stress, phase constituents, and electrochemical resistance (or capacitance) of TBC constituents-with an emphasis on the thermally grown oxide. Results from NDE by PSLS and EIS are correlated to the nano- and microstructural development of TBCs.

引用

页码：53 / 56

页数：4

共 37 条

[31] Microstructural study of the theta-alpha transformation in alumina scales formed on nickel-aluminides [J].