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A non-destructive coating to enhance observations of dynamic thermal strain and reduce false positives in sonic infrared (SIR) inspections

Evaluating components for discontinuities without damaging the part or system remains a priority for diverse industries and research fields. Low-cost techniques such as fluorescent penetrant inspection (FPI) are in widespread use by major industries, such as aviation and aerospace, despite limited defect detection and the need for complex, multi-step operations in highly controlled conditions. Non-destructive methods such as sonic infrared (SIR) testing, which applies ultrasound waves to identify surface defects and cracks, holds promise for widespread use but stand to improve in the detection of false positives.