Could I use a volcano to fire my ceramics?

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Larry

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Could I use a volcano to fire my ceramics?
« on: 12/08/2008 22:40:58 »
Larry asked the Naked Scientists:

Hello,

I want try something a bit crazy so I'm attempting to work out the details.

I want to harvest the heat of volcano to fire ceramic.  The glazing stage could be skipped due to the obsidian forming around the shell.  And, the heat harvest could save the normal firing kiln materials.  But materials and means are yet a mystery, any ideas?

Larry

What do you think?

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Offline LeeE

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Could I use a volcano to fire my ceramics?
« Reply #1 on: 15/08/2008 00:02:41 »
You'd need to pick the right kind of lava, but it might work, as long as you don't want to actually retrieve the ceramics after firing.
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!

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Offline cheryl j

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Could I use a volcano to fire my ceramics?
« Reply #2 on: 10/11/2011 20:04:07 »
Yeah, that's what I was wondering. How are you going to get it back out?

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Offline CliffordK

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Could I use a volcano to fire my ceramics?
« Reply #3 on: 10/11/2011 22:20:48 »
I don't see why you couldn't go to Hawaii.
Build a portable kiln that you could put over a fresh lava flow, and collect the excess heat from the running lava. 

I'm not sure about making obsidian on demand, although ordinary bricks put into a normal (hot) kiln may glass over after a time.  I met a guy a while ago that had built a wood fired kiln, and a few of the bricks in the kiln got pretty glassy on the edges.