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Development of Advance Thermal Barrier Coating in Gas Turbine

Journal Advanced Materials Research (Volumes 123 - 125)
Volume Multi-Functional Materials and Structures III
Edited by Joong Hee Lee
Pages 459-462
DOI 10.4028/www.scientific.net/AMR.123-125.459
Citation Choul Jun Choi et al., 2010, Advanced Materials Research, 123-125, 459
Online since August, 2010
Authors Choul Jun Choi, Jung Ki Lee, Lee Ku Kwac, Jae Yeol Kim
Keywords Blade, Gas Turbine Blade, High Velocity Oxy-Fuel (HVOF), Thermal Barrier Coating (TBC)
Abstract

Combustion gas of gas turbine is about 1100 ~ 1300 ℃. Is doing TBC(Thermal Barrier Coating) on the base metal surface to protect rotor or blade from high temperature flame. TBC system reduced heat transfer as metal base metal. TBC system is divided by bond coating of prevent oxidation and corrosion and Top coating reduced of heat transfer by high Temperature flame. The objective of this study was to development of an advance TBC system for high Temperature (>1350℃) gas turbine components. Used coating powder developed newly in coating process, and more than 1350℃ by parameter control in usable coating method develop. Internal studies looked at the effect of TBC coating thickness, material chemistry, substrate composition, surface temperature and bond coat as-sprayed surface profile/particle size on technical performance.

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