Mark Potter on fri 21 sep 07
Silver has a low melting point. . . is there a way to 'condense'
silver onto the surfaces of pots??
I need to go into the archives. . .anyone who can tell me how to do
this?? (never used the Clayart Archives). . . do I have to log in. . .
Or if you have some thoughts on this I'm curious as to what happens
when silver, either metallic silver. . . or silver compounds. . . are
combined with glazes. .
Does silver always volatize away and out of the glaze???
For instance if I was to put a silver quarter (getting expensive
these days) into my high fire kiln. . and go to Cone 10. . . I'm
assuming there would be nothing left. . .but would there be evidence
of any silver presence once the firing was over??
all the best
Mark Potter
firstbridge@gmail.com
Marcia Selsor on fri 21 sep 07
I think you are looking for precious metal clay which is commercially
manufactured and whose producers sponser workshops on how to use it.
Can tell you any more than that. I taught jewelry ages ago. I don't
think you want to put silver into a ^10 firing. It would burn.
If you ate trying for a simple silver luster on a previously high
fired piece, that is easy to do.
Marcia Selsor
http://marciaselsor.com
On Sep 21, 2007, at 11:22 AM, Mark Potter wrote:
> Silver has a low melting point. . . is there a way to 'condense'
> silver onto the surfaces of pots??
>
> I need to go into the archives. . .anyone who can tell me how to do
> this?? (never used the Clayart Archives). . . do I have to log in. . .
>
> Or if you have some thoughts on this I'm curious as to what happens
> when silver, either metallic silver. . . or silver compounds. . . are
> combined with glazes. .
>
> Does silver always volatize away and out of the glaze???
>
> For instance if I was to put a silver quarter (getting expensive
> these days) into my high fire kiln. . and go to Cone 10. . . I'm
> assuming there would be nothing left. . .but would there be evidence
> of any silver presence once the firing was over??
>
> all the best
>
> Mark Potter
> firstbridge@gmail.com
>
Marcia Selsor
http://marciaselsor.com
Lois Ruben Aronow on fri 21 sep 07
Quarters (and other silver-colored US coins) are not made from silver. They
are made from a compound of copper and nickel. In quarters, there is a
solid core of copper. If you fired one, you would not be firing silver.
Pennies are made of approx 97% zinc and are coated with copper. I fired one
in a dish once, and it turned into a really ugly looking pointy thing. It
was interesting, but not enough to do it again.
The melting point of sterling silver is 1600f. Pure silver is 1750. I have
seen pots with silver embedded into it, and it turned black and runny. I
have a jar of silver shavings from the flap wheel of a jeweler friend. I
rolled some clay on it. Nothing happened in the bisque, and it was
disappeared at ^7.
Your mileage may vary if you come with a more imaginative way to use it.
Test test test!
...Lo
"this is Lois. Just being Lois"
**********
Lois Aronow Ceramics
Brooklyn, NY
www.loisaronow.com
www.craftsofthedamned.blogspot.com
> -----Original Message-----
> From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of
> Mark Potter
> Sent: Friday, September 21, 2007 12:22 PM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Silver in Pottery . . .
>
> Silver has a low melting point. . . is there a way to 'condense'
> silver onto the surfaces of pots??
>
> I need to go into the archives. . .anyone who can tell me how
> to do this?? (never used the Clayart Archives). . . do I have
> to log in. . .
>
> Or if you have some thoughts on this I'm curious as to what
> happens when silver, either metallic silver. . . or silver
> compounds. . . are combined with glazes. .
>
> Does silver always volatize away and out of the glaze???
>
> For instance if I was to put a silver quarter (getting
> expensive these days) into my high fire kiln. . and go to
> Cone 10. . . I'm assuming there would be nothing left. . .but
> would there be evidence of any silver presence once the
> firing was over??
>
> all the best
>
> Mark Potter
> firstbridge@gmail.com
>
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