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Hobby of the month
My crap
comp study II - beerkeg glass 
11th-Aug-2008 07:15 pm

 how bored are you with looking at this yet?
i'm not at all. hooray! all it's glory..

 after about 20 minutes it looks like this and pretty much stays this way. you can see the side of the crucible if you look hard enough.
guestimate ~1000ºc


 never try this at home. i prefocused the camera then stuck my hand into the exhust. OH & S  lookout! heh heh heh .. nah as if, i had it higher than it hurt. ;)

 this is how when you open the lid the crucible sits with in. cool. no hot. cool.


 and looking above again. seeing the inport really swirls the fire round.

 after cooking my batch at ~1050ºc for 8 hrs, and having run out of lpg gas, i cracked it open. note the use of piss weak gloves. it's touchable, but only briefly, more fibre would help with this.


 the batch recipe was taken from 'The science and archaeology of materials. an investigation of inorganic materials' p.51  - 70% silica, 25% soda ash, 5% calcium oxide. hooray

 so having picked up the crucible, i then tipped the molten glass into a bucket of water to frit it


 the glass was only just beginning to fine out, and is still pretty seedy. but most of it came flowing nicely

 you can kinda see the glass in the bottom there, it has a vague blueish tint to it, which i really like.

the plan is to make more and then utilise it in wood fired guy. hooray!

11th-Aug-2008 09:42 am (UTC)
Not bored yet ;)

This is really fantastic work - thanks for sharing!
11th-Aug-2008 09:51 am (UTC)
ta. :)

i don't get to post as frequently any more, and i'm backdating lots of stuff atm...

glad you're liking it, i'm hoping it blows well (as that is a complete unknown :)
11th-Aug-2008 10:55 am (UTC)
This is WAY COOL
11th-Aug-2008 10:45 pm (UTC)
surprised you've never had a go through metal casting. pretty much ripped the tech from there.
11th-Aug-2008 12:12 pm (UTC)
I still can't believe you found a degree where you get credit for lighting fires...

Cool looking keg furnance thingy
11th-Aug-2008 10:46 pm (UTC)
i win! ;)
12th-Aug-2008 01:23 am (UTC) - So...
when you gonna venture into manufacturing enamel powders for me?
12th-Aug-2008 10:32 am (UTC) - Re: So...
when i get _this_ right ;)

and not white. too much arsnic
15th-May-2009 08:31 am (UTC)
Wow! It's beautiful!
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