Dave Finkelnburg on mon 31 may 04
Kat,
You are on to something here...the early point at which boron melts.
However, you still have to have pure carbon present to trap it. The kiln
had to be in strong reduction before the boron made the glaze fluid.
See the December 2003 issue of Studio Potter for a simple explanation I
wrote about carbon trapping. It's part of Malcolm Davis' article on his
Shino work.
Regards,
Dave Finkelnburg, obviously reading some Clayart posts a week
late...
----- Original Message -----
From: "Kat in the Hat"
Subject: The Science of Ceramics
Sent: Wednesday, May 26, 2004 3:41 PM
> Ron:
> You said:
> >Hi Boron glazes have the potential to trap organics in single firing by
the
> >way. I have no experience here - only theory. I would like to hear from
> >anyone either way on the subject.
>
> Could it be that Boron begins to melt at such an early stage in the
firings
> that the organic materials do bind within the mix, changing the color,
etc...
> Or creating a reduction within the layer of glaze and clay? (just brain
> storming)
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