Modern jet engine turbines: each blade a single crystal (2015)

whycome 58 points 22 comments May 03, 2026
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Discussion Highlights (7 comments)

gabrielsroka

Veritasium https://youtu.be/QtxVdC7pBQM

Animats

(2015) "With recent decreases in the price of natural gas..."

amelius

Lots of trade secrets there. I wonder how many of them the BigAI companies have already collected.

paozac

A good article on jet engines: https://www.construction-physics.com/p/why-its-so-hard-to-bu...

sudb

I've always found the pigtail selector to be the coolest part of the process which just uses geometry to "select" a crystal that grows in the correct orientation for the turbine blade.

3eb7988a1663

Efficiency was mentioned a few times, but without any hard numbers. What was the state of the art efficiency over time from a 1940s design to today? Have improvements plateaued or is there still a lot of theoretical gains on the table?

leonidasrup

Asianometry Gas Turbine Blades and their Heat-Defying Single-Crystal Superalloys (video) https://www.youtube.com/watch?v=yR5mR-KoNzA

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