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Making YBCO superconductor

Applied Science · 642.4K views · 2018-02-26 · 19:37

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Overview

Ben Krasnow of Applied Science shows how to make and test YBCO high-temperature superconductor with a kiln and eBay chemicals. He demonstrates flux pinning and shows a close-up of the crystal structure.

On Hacker News

HN points to it in superconductor and LK-99 threads as evidence that YBCO can be made in a modest home lab.

Recommended by 1 HN people across 1 months · HN mentions 2021–2023

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What people said

eco · 2023-08 · Recommendation

I think he might be working on it. On Twitter he teased a homemade device for making very fine powder for, say, superconductors. Here's his video of making YBCO for anyone that hasn't seen it: [VIDEO]

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uyhgr · 2023-08 · Reference

The term is “flux pinning”, and it only applies to the “quantum lock” effect. That is the specifically static hovering effect. The diamagnetism, importantly this means repulsion of both poles simultaneously and equally (this is how you can have these magnets spin, a regular magnet repels same poles and attracts opposites, diamagnets repel both poles), is simply a characteristic of the superconductor, but it alone would just repel the object off. Here is a timestamped link to NileRed’s YBCO video that visually describes the flux pinning: [LINK] And here’s a timestamped link to Ben Krasnow’s Applied Science YBCO video where he shows a close up of the crystal’s cross section that shows the imperfections that allow the magnetic field through for the pinning effect: [VIDEO]

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gus_massa · 2022-12 · Reference

Most of it, but there are some corners. For example, high temperature superconductivity was discovered in 1986 [1]. The process is not so complicated, and can be done at home. Well, at least in a very good personal lab, for example see this video by Applied Science. [VIDEO] I think the original team made like 100 samples using different metals and different oxygen proportion. Discovering the first one requires some brute force that needs a small team, and is too much for a single person. Anyway, it doesn't look too far away from something a single person can discover. [1] That's 36 year ago. I'm feeling old...

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Sources

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