Why dont jet engines melt?

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0:00 How a jet engine works
3:18 Why are jet engines so big?
5:17 The Inside of a Jet Engine
8:49 Edge Dislocation
11:11 The First Jet Engine
12:48 Inside the Rolls-Royce Precision Casting Facility
17:07 Nickel Superalloys - Gamma Prime
23:58 Crystal Structure
25:38 Making a Turbine Blade
32:22 Why don’t turbine blades melt?
35:30 Throwing Sand Into a Jet Engine

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A big thanks to Ben Todd, James Banks, Ben Fifoot, Doug Smith, Stefan Wagner, Rumaanah Hoosen and the rest of the team at Rolls-Royce.

A huge thanks also to Professor Howard Stone and Dr George Wise from the University of Cambridge.


We’re also incredibly grateful to Professor Jaafar A. El-Awady, Dr Karen A Thole, Professor Cathie Rae, Professor Paul Withey, Professor Pedro Patrício, Professor José Tavares and Ryan Moreman for their time and expertise.

Thanks to Institute for Materials, Ruhr University Bochum, SFB Transregio 103 for the animation showing the microstructure of the nickel superalloy. Full youtube video here - https://www.youtube.com/watch?v=wYHch5QIWTQ

Thanks to Professor Hongbiao Dong for the animation showing the grain selection in a single crystal turbine blade. Full youtube video here: https://www.youtube.com/watch?v=br9iaeYYxSM

References: https://ve42.co/JetEngineRefs

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Writers - Emilia Gyles, Casper Mebius & Derek Muller
Producer & Director - Emilia Gyles
Presenters - Derek Muller & Henry Van Dyck
Editor - Trenton Oliver
Camera Operators - Jack Coathupe, Justin Wood, Emilia Gyles, Henry Van Dyck & Derek Muller
Animators - Mike Radjabov, Emma Wright & Fabio Albertelli
Additional Editors - James Stuart & Peter Nelson
Researcher - Aakash Singh Bagga
Thumbnail Designers - Ren Hurley, Ben Powell & Abdallah Rabah
Production Team - Josh Pitt, Matthew Cavanagh, Anna Milkovic & Katy Southwood
Executive Producers - Casper Mebius & Derek Muller

Additional video/photos supplied by Getty Images, Storyblocks
Music from Epidemic Sound