Electronics > Projects, Designs, and Technical Stuff
(ultra)acoustic in circuit component level crack detector?
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coppercone2:
i am not sure what material it is, but if you melt a cup down in acetone you can make a putty that will solidify and be pretty brittle. its some kind of styrene

with gloves you can kinda mold it too, i used to play with that when I was small

rhb:
It's called polystyrene.
coppercone2:
i don't think the grade you get from that is the same as a real polystyrene part, its pretty brittle. I thought about messing with it by reducing the pressure a bit but not too much or letting it evaporate in a dish slowly and dehydrating it a few times so it can maybe achieve a higher density but I never bothered doing serious experiments on it. and it might have a different composition and additives then a mechanical part because its from foam.

i don't want people getting a false impression that you can get great results doing that. its liquid string cheese
coppercone2:
https://www.eevblog.com/forum/chat/sydney-tower-colllapse-fears/?topicseen

imagine a cheapie could check for structural problems or shifts, may be interesting even if you dont care about capacitors
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