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-   -   Spreadsheet additions? (http://talk.craftweb.com/showthread.php?t=12467)

Paul Stout 11-09-2019 12:18 AM

Spreadsheet additions?
 
I've just put together a spread sheet for calculating L.E.C. (I know; its a guide not gospel) Is anyone willing to share any additional expansion values for things like strontium, or any other potentially useful ingredients, beyond what's listed in 'Modern Glass Practice' and 'Glass Notes IV'? Or have a suggestion of where to look for such additional values? Thanks in advance.
P.S. the original E&T values were published in 1927 in the Journal of the American Ceramic Society volume 10, pg. 551. It's a well written piece of history.

Pete VanderLaan 11-09-2019 10:19 AM

Look at Appen.

Josh Bernbaum 11-09-2019 09:15 PM

I think Dave Bross mentioned here somewhere that strontium and barium were very similar on expansion factor. So I've been entering the strontium in the barium line of the spreadsheet. How accurate that is, I'm not sure yet but is what I've been doing on the spreadsheet for these phosphates I'm doing now which have a decent amt. of strontium.


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