Pumukli
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Rusty ball thermit
I've found this interesting thermit demonstration experiment and uploaded it here for your entertainment. ![:)](./images/smilies/smile.gif)
(I was searching "aluminum foil activation" on the net while came across this gem.)
Just read it and try - if you have the balls. ![:D](./images/smilies/biggrin.gif)
And please report back!
Attachment: rustyballthermite.pdf (155kB) This file has been downloaded 431 times
[Edited on 28-1-2019 by Pumukli]
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DraconicAcid
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I do that all the time for my students. I went to the metal scrap people and asked them if they had any tekk bearings- they are just the right size.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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wg48
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I once found some reels of old magnetic tape. I assumed it was coated with a magnetic oxide perhaps an iron oxide. Using pieces of the tape and
aluminium foil I made a thick sandwich of alternative sheets of the tape and foil. I then heated the sandwich slowly hoping to volatilise the plastic
of the tape and leave a thermite mixture that would ignite when it was hot enough. It never did ignite but while it was being heated strongly it made
a succession of pops and crackes which I assumed were small areas of aluminium and oxide that reacted explosively.
I guess the pops and cracks could also have been the sudden release of trapped gases from the decomposition of the plastic.
Borosilicate glass:
Good temperature resistance and good thermal shock resistance but finite.
For normal, standard service typically 200-230°C, for short-term (minutes) service max 400°C
Maximum thermal shock resistance is 160°C
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FeedMe94
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Awesome idea , i will give it a try. A friend of mine have some old rusty cannon balls , solid iron
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Ubya
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myst32YT showed it 9 years ago. https://www.youtube.com/watch?v=rqXP-yUT_zI
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feel free to correct my grammar, or any mistakes i make
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FeedMe94
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A bit off topic but i will give it a go if you dont mind
Here where i live , the older guys , every easter make a white paste and use to cover big round pebbles from the beach. Then they throw it to a
downslope and the pebble exploding everytime it hits the road. Any idea what this is ?
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