How added Fizz makes metals stronger | Catherine Tonry | TEDxUniversityofGreenwich

We can make stronger metals by adding bubbles while the metal is molten. How? By using a phenomenon known as ultrasonic cavitation. This talk breaks down cutting-edge technology into easy-to-understand steps. Starting with fizzy drinks; looking at metal solidification and nucleation; and finally, how bubbles can be created using just sound. These are all then linked together to show how shockwaves created by bubbles collapsing can lead to stronger metals. This talk is delivered by Dr Catherine Tonry, a Senior Lecturer in Computational Science and Engineering. In this role she develops numerical models of physical processes. With 15 years of experience in numerical modelling, she currently applies her skills to the field of metallurgy. She is an expert in the field of using ultrasonic cavitation, using ultrasound to produce clouds of imploding bubbles, to strengthen metals. She also has extensive experience in the field of magnetohydrodynamics, modelling the effects of electromagnetic fields on molten and solidifying metals. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx