iandol on fri 20 apr 01
I would be quite happy to close this discussion with one thought.
Use "Consolidate" to imply that all the little defects which may succumb =
to excess stress and cause some form of fracture are being eliminated by =
having some clay moved into the space where they exist. This takes care =
of ; voids which open up when big bits of grog move; fissures which open =
up when clay shears; small bubbles which remain even though we have =
wedged to get a uniform paste; voids which open when clay folds rather =
than slides; coarse scratches or turning lines.
If allowed to persist, these flaws, or defects, are places where high =
stress can cause a crack or fracture to start.
Consolidate can be explained. It give clear, concise reasons in concrete =
terms we may all understand. Give clay a bit of a push, a nudge and it =
sticks to itself. Stength is restored.
Best regards and thank you for all the interest which has been shown.
Ivor Lewis.
Redhill, South Australia
Iveragh Ceramics on sat 21 apr 01
There has been a good word there for a long time, it is "THROWING", learn to
do it right and all the raving on this matter can be put where it belongs,in
the dustbin.
Regards,
Bob Hollis
----- Original Message -----
From: "iandol"
To:
Sent: Friday, April 20, 2001 7:38 AM
Subject: "S" Crack Musings.
I would be quite happy to close this discussion with one thought.
Use "Consolidate" to imply that all the little defects which may succumb to
excess stress and cause some form of fracture are being eliminated by having
some clay moved into the space where they exist. This takes care of ; voids
which open up when big bits of grog move; fissures which open up when clay
shears; small bubbles which remain even though we have wedged to get a
uniform paste; voids which open when clay folds rather than slides; coarse
scratches or turning lines.
If allowed to persist, these flaws, or defects, are places where high stress
can cause a crack or fracture to start.
Consolidate can be explained. It give clear, concise reasons in concrete
terms we may all understand. Give clay a bit of a push, a nudge and it
sticks to itself. Stength is restored.
Best regards and thank you for all the interest which has been shown.
Ivor Lewis.
Redhill, South Australia
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