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Author: Subject: DIY high temp. superconductors
Fusionfire
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[*] posted on 21-1-2012 at 07:42
DIY high temp. superconductors


Both of these superconductors work at temperatures above the BP of liquid nitrogen.

http://en.wikipedia.org/wiki/YBCO
http://en.wikipedia.org/wiki/BSCCO

Has anyone been able to make them as an amateur chemist at home? How did you do it and what were the results?

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phlogiston
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[*] posted on 21-1-2012 at 14:53


No idea, but this looks like a nice, spectacular synthesis:

http://www.youtube.com/watch?v=-JLWeYQFA2I




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[*] posted on 22-1-2012 at 05:29


Very nice. When I come back from holidays I'd like to try that :)
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[*] posted on 26-3-2014 at 06:26


What were the reactants? The video doesn't say, but if I had to guess it would be barium carbonate, yttrium oxide and copper oxide.



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[*] posted on 26-3-2014 at 06:42


YBCO can be made by heating the metal carbonates at temperatures between 726.85- 1030 C
4BaCO3 + Y2(CO3)3 + 6CuCO3 + Excess O2 --> 2YBa2Cu3O7 + 13CO2

Suppose this could be done in a furnace

Otherwise I found this article using the metal oxides to make YBCO

http://scitech.au.dk/fileadmin/site_files/formidling/Superle...

[Edited on 26-3-2014 by Steam]




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elementcollector1
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[*] posted on 2-4-2014 at 11:39


Can't say I enjoy that method, as I have no pressure devices or high-temperature devices.
Where, then, would be a cheap place to buy YBCO disks?
Cheapest I've seen was $50 per disk, here: http://shop.can-superconductors.com/demonstration-kits/13-dk...
Also found this, but I get the strangest feeling they're selling me the powder, and I don't think I can sinter it without removing the properties: http://www.americanelements.com/ybacuo.html
Also, don't know the price for that last one.
How do universities get their hands on these materials? They can't seriously all be manufacturing their own, that's pre-Industrial Revolution style thinking.




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[*] posted on 11-1-2018 at 06:43


this is how YBCO can be made: https://www.youtube.com/watch?v=XjuUMVm3hZ8
2 step process gives much better results: https://www.youtube.com/watch?v=FBDWn1ltZDI
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