Dwiggins, Sandra (NCI) on fri 13 sep 02
Claybuds...
Is there anyone out there who has tried to melt a large amount of glass in a
bowl? Not just incorporating a few pieces here and there, or one piece down
at the bottom of something....but a significant amount, of around 1 inch or
more deep. I would like to try incorporating this into a piece I'm
working on, but I don't know if that amount of glass would crack the
surrounding clay. Or maybe I need to fire the clay to a temp and then do
the glass.
I've never worked with glass except for the occasional little piece....
TIA
Sandy
Julie Milazzo on fri 13 sep 02
I tried it. Both the clay and the glass cracked. You
couldn't run your finger over even an inch of it
without getting a nasty sliver. Maybe, yes, a clay
body with higher shrinkage would help, or adding
smething in with the glass (which would, I guess start
turning it into a glaze, defeating the purpose of pure
glass). For now, experiment with decorative pieces
only. I saw some plates at TJMaxx that had glass.
Anyone who tried eating off them would have gotten a
bloody mouth. I can't believe they were selling them
as dinnerware. Good luck! For a good cobalt, use the
Arizona ginseng ice tea bottles (I think it's ginseng;
look for the blue one). Jules--- "Dwiggins, Sandra
(NCI)" wrote:
> Claybuds...
> Is there anyone out there who has tried to melt a
> large amount of glass in a
> bowl? Not just incorporating a few pieces here and
> there, or one piece down
> at the bottom of something....but a significant
> amount, of around 1 inch or
> more deep. I would like to try incorporating
> this into a piece I'm
> working on, but I don't know if that amount of glass
> would crack the
> surrounding clay. Or maybe I need to fire the clay
> to a temp and then do
> the glass.
>
> I've never worked with glass except for the
> occasional little piece....
>
> TIA
> Sandy
>
>
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Gary Elfring on mon 16 sep 02
DSN> Is there anyone out there who has tried to melt a large amount of glass in a
DSN> bowl? Not just incorporating a few pieces here and there, or one piece down
DSN> at the bottom of something....but a significant amount, of around 1 inch or
DSN> more deep. I would like to try incorporating this into a piece I'm
DSN> working on, but I don't know if that amount of glass would crack the
DSN> surrounding clay. Or maybe I need to fire the clay to a temp and then do
DSN> the glass.
I have done it, and while it wasn't a disaster, it was very close.
I threw a porcelain bowl, and took a large number of colored glass
chunks from the school glass blowing area, and put them in the bottom.
It turns out that the porcelain *dissolves* in the glass! The glass
layer (a bit fractured) at the bottom of the bowl is about 1 inch
deep. You can clearly see (right through it ) that the porcelain
in contact with the glass dissolved, almost eating its way through the
bowl.
No cracking in the clay, but a bit longer at cone 10 and all the
glass would have been on the shelf. The glass blowing material melts
at about 1550, so I guess cone 10 was a bit too hot.
--
Best regards,
Gary mailto:info@elfring.com
Eleanora Eden on mon 11 nov 02
>My first pots were made in high school (Berkeley High, 1959 or so) and I
>melted a bunch of glass marbles in one of them to see how it would
>do.....my recollection is a canoe-shaped deal on 3 legs......and the
>bottom just filled up with a little lake of glass that crazed but didn't
>harm the pot.
Eleanora
>Claybuds...
>Is there anyone out there who has tried to melt a large amount of glass in a
>bowl? Not just incorporating a few pieces here and there, or one piece down
>at the bottom of something....but a significant amount, of around 1 inch or
>more deep. I would like to try incorporating this into a piece I'm
>working on, but I don't know if that amount of glass would crack the
>surrounding clay. Or maybe I need to fire the clay to a temp and then do
>the glass.
>
>I've never worked with glass except for the occasional little piece....
>
>TIA
>Sandy
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
Eleanora Eden 802 869-2003
Paradise Hill Road eeden@vermontel.net
Bellows Falls, VT 05101 www.eleanoraeden.com
Arnold Howard on mon 11 nov 02
Sandy's question about fusing glass to clay would be a good one to
ask at www.warmglass.com. This is one of the leading websites on
hot glass work. It includes a popular bulletin board. You are bound
to get an answer there.
Glass is a fascinating medium. I attended the Flame Off last
weekend in Albuquerque, New Mexico. At this event, leading glass
artists made sculptures in front of an audience. There were four
artists working with torches at any given moment.
With best wishes,
Arnold Howard
Paragon Industries, Inc.
--- Eleanora Eden wrote:
> >My first pots were made in high school (Berkeley High, 1959 or
> so) and I
> >melted a bunch of glass marbles in one of them to see how it
> would
> >do.....my recollection is a canoe-shaped deal on 3 legs......and
> the
> >bottom just filled up with a little lake of glass that crazed
> but didn't
> >harm the pot.
> Eleanora
>
>
>
>
> >Claybuds...
> >Is there anyone out there who has tried to melt a large amount
> of glass in a
> >bowl? Not just incorporating a few pieces here and there, or
> one piece down
> >at the bottom of something....but a significant amount, of
> around 1 inch or
> >more deep. I would like to try incorporating this into a
> piece I'm
> >working on, but I don't know if that amount of glass would crack
> the
> >surrounding clay. Or maybe I need to fire the clay to a temp
> and then do
> >the glass.
> >
> >I've never worked with glass except for the occasional little
> piece....
> >
> >TIA
> >Sandy
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Joanna Jorgensen on tue 12 nov 02
Two brave souls in my class have tried this, one with sea glass, and one
with bits of broken stained glass sheets.
They have experimented with adding it to the piece during the glaze
firing, Cone 05. What seems to happen is that the glass is melted beyond
just melted to
bubbling and where the bubbles are (or were before popping) the clay
is raw. A pattern of somewhat misshapen circles of glass results with
raw clay in the middle.
I did not care for the effect myself.
If the glass was added to a piece already glazed to temp and refired to
whatever the melting point of glass is perhaps there would be better
results.
This was not an option for the students in the class kiln. The glass did
not damage or crack the vessel in any way from what I saw.
Joanna Jorgensen
Coconut Creek,FL
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