iandol on sat 5 apr 03
Dear Phil,
An interesting question, the action of shrinking clay as it dries and =
then as the structure collapses during vitrification.
Why not test the idea. Roll out some clay and punch a hole in it. =
Measure the diameter while the clay is soft, after it has dried and =
after firing.
If fracturing does not happen during drying and cooling then the steel =
may pull the clay into compression.
Best regards,
Ivor.=20
pdp1@EARTHLINK.NET on sun 6 apr 03
Ohhhhhh...I may not just now do the experiment I don't
think...too much else needing done...
But as I think of it...the Clay I'd expect to shrink away
from the armature, then to expand much more than it in the
heat, then to contract much much more than it, and than
itself had been when 'dry', in the cooling from the
heat...and I'd expect troubles for sure! ...Clay-ends
popping off and so on...
Yet one hears of Ceramic artists getting away with it
somehow)...lots of grog?
...curious!
Phil
----- Original Message -----
From: "iandol"
To:
Sent: Friday, April 04, 2003 11:52 PM
Subject: : : Stainless steel and ceramic
Dear Phil,
An interesting question, the action of shrinking clay as it
dries and then as the structure collapses during
vitrification.
Why not test the idea. Roll out some clay and punch a hole
in it. Measure the diameter while the clay is soft, after it
has dried and after firing.
If fracturing does not happen during drying and cooling then
the steel may pull the clay into compression.
Best regards,
Ivor.
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