Interesting Factoid about Thick Pieces and Cracking

I was cruising through the various pottery groups I belong to on FB, and there was this piece about really thick items:

[Dick White])

Even it is completely dry at 212⁰F and doesn’t explode, there is a second period of chemical water formation at around 900⁰F as the clay molecule reorganizes into the ceramic silica and alumina oxides. That will cause a piece that is too thick to crumble into large shards (though not explosive, just a pile of rubble). Don’t do it. If the sculptor doesn’t know his or her materials, you shouldn’t accept the risk of their ignorance.

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Science!

(and this is some fascinating shit I guess I heard about in a chemistry class because it rings a bell and I don’t know anything about ceramics)

But science!!

+1

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Yes, that is true, I follow a fabulous artist named Diane Lublinski, she makes large statues, they are all hollowed out though.

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