Louis Katz on wed 11 jun 97
Getting a bit out of my area of expertise, I will try to explain why
glazes change over time when mixed with water.
Some compounds that we use are not as inert at room temperature as we
would like. Materials that have some real solubility in water are the
culprit in these changes. Metals that go into solution as compounds with
one radical(SO3 for example) often come out of solution in time as
compounds with another radical(CO3 for example). Sometimes these new
compounds recrystalize as lorge chunks. This large chunking can even
happen without a change in radicals.
Not a complete answer, and I would love it if some said it better, but
there it is.
Louis
Louis Katz
Texas A&M University Corpus Campus
lkatz@falcon.tamucc.edu
http://www.tamucc.edu/~lkatz
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