Ultrasonic flaw detection transducers materials- Lead Metaniobate

Lead metaniobate is a special material for Ultrasonic transducer. It's low mechanical QM, negligible aging, wide range of operating temperatures and small values for lateral and planar coupling compared to longitudinal coupling are the important charecterists.As used for Ultrasonic Flaw detection transducer, it's good for single element thickness gauge probe.