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Posted 29 Dec 2012Is there a cut and dry definition of COE? My
Insight glaze calc gives a number. I understand that to be
something like, for example, 7.25 x 10 -6, but the number given
is simply 7.25. Does that number come from the percentage of
expansion divided by the temperature change, or something to
that effect? If not, can anyone tell me where it comes from?
Other glaze calcs seem to have a different number, but I'm
guessing that the zeros are just changed. the answer is yes.
it's a coefficient of linear expansion (ie how much length,
delta L, as a part of the original length L is added with added
temperature, delta T). see for example
http://www.plainsman...m/data/H550.HTM or similar graphs is
glaze chemistry books (i think there are some in MC6G) a little
twist in this: you'll notice the number you're getting is for t