In this episode we dive into the science behind ultrasound characterization for flaw internal, non-destructive flaw detection. Piezoelectric materials generate electricity in response to an applied stress. Through careful tuning, these materials can detect differences in ultrasonic vibrations that allow us to identify flaws deep within materials. At the end of the episode we sit down with Dr. Jeff Bates and discuss his work on hydrogels in ultrasound applications and his experience in materials consulting.
Referenced articles:

Nondestructive Air-coupled Ultrasound Measurement in the Food Industries [LINK]
A Study on Automatic Flaw Detection using MSSIM in Ultrasound Imaging of Steel Plate [LINK]
Laser Ultrasound [LINK]
Air Coupling [LINK]
Defect Detection in Additively Manufactured Components [LINK]

This episode is sponsored by Matmatch. Check out how they can help you find the perfect material for your next engineering project!
Thanks to Kolobyte and Alphabot for letting us use their music in the show!
If you have questions or feedback please send us emails at materialism.podcast@gmail.com or connect with us on social media: Instagram, Twitter.
Materialism Team: Taylor Sparks (co-host, co-creator), Andrew Falkowski (co-host, co-creator), Jared Duffy production, marketing, and editing), Ramsey Issa (editing assistance).
Keywords: ultrasound hydrogels polymers flaw detection characterization piezoelectric
Support Materialism: A Materials Science Podcast by contributing to their Tip Jar: https://tips.pinecast.com/jar/materialism
Find out more at https://materialism.pinecast.co