Thermographic NDE of Bond Interface Integrity in Thermal Spray Coating

In Phase I of this SBIR project, we will determine the feasibility of a novel approach to active thermography for quantitative NDE of both thermal and cold spray coatings used in manufacture, maintenance and repair of hot section components. Our approach, Active Interleaved Thermography (AIT) builds on our extensive experience in NDE of Aerospace and Industrial Gas Turbine (IGT) TBCs, and leverages 3 proven, patented TWI technologies to provide quantitative NDE in a robust system that can be used in either manufacturing or depot environments. Our objective is to provide a high-resolution, 100% area coverage map of thickness and/or thermal diffusivity, to include disbonds and non-conformities, and scalable to thick or thin ceramic TBC, metal bond, and cold spray coatings.