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Wednesday, May 16 • 10:30am - 11:00am
Sand-phobic Thermal Barrier Coatings Materials and Processing for Life Extension of Power Generation Components in Austere Environments

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Sand ingestion and chemo-mechanical attack of hot-section turbine components is a leading cause of engine maintenance and repair in modern rotorcraft operational environments. Here we summarize efforts to date in the research, development, test, and evaluation of novel materials and processes for Thermal Barrier Coatings (TBCs) which exhibit enhanced resistance to Calcia-Magnesia-Alumina-Silica (CMAS) attack. As part of the ongoing research effort, novel multilayer formulations and deposition methodologies were developed to provide samples for characterization, screening, and evaluation for quantitative and qualitative measures of CMAS resistance in coupon and representative configurations. US Army Research Laboratory (ARL) efforts, in collaboration with other Government partners, yielded a 30% improvement in CMAS accumulation in representative engine testing via novel multilayer TBC formulation and processing. Further investigations will leverage these materials and multilayer architectures for continued TBC advancement with planned forays into Environmental Barrier Coating (EBC) applications for Ceramic Matrix Composite (CMC) hot-section turbine hardware.

avatar for Marc Pepi

Marc Pepi

US Army Research Laboratory

Wednesday May 16, 2018 10:30am - 11:00am
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