Evolution of Thermal Barrier Coating Systems for Gas Turbine Applications (20/02/26)
Speaker and Affliation:
Dr. Ben Nagaraj
GE Aviation (Retired), Cincinnati, USA
When?
20th February, 2026 (Friday), 03.30 PM (India Standard Time)
Where
KPA Auditorium, Dept. of Materials Engineering, IISc, Bangalore
Abstract:
In aircraft and power generation gas turbine industry, thermal barrier coatings are widely used for thermal insulation of critical components. This talk will review the evolution of chemistry and processing techniques for the application of thermal barrier coatings, along with a general overview of materials used in gas turbine engines. The talk will focus on the structure-property and failure modes of thermal barrier coating systems, laboratory test methods used for thermal barrier coatings, with emphasis on environmental deposits on the coating lives. Technical challenges to be addressed in future work are outlined.
Short Bio of Speaker:
Dr Nagaraj received his BE in Metallurgy from IISc in 1973, went to Imperial College London,where he received his PhD in high temperature corrosion. He worked for 8 years with British General Electric Company developing high temperature materials for power generation gas turbine engines. In 1986, he joined the US General Electric Aviation company in Cincinnati, Ohio where he worked for 34 years in their Materials Process department. His work included development, production and evaluation of hot section materials, with emphasis on coatings for hot section of the engine. He has 84 patents and numerous publications and awards.