Mike MacMahon on thu 10 apr 97
I know I,ve seen the answer, but haven't been able to find the
source. I,m looking for the general replacement percentage of strontium
carb. to barium carb. in a given glaze to make it less toxic to handle, and,
is it as easy as that, or generally, do other ingredient adjustments have to
be made.
Thanks in advance
Grimmer on fri 11 apr 97
Me again.
A good starting point is 0.75 Sr for each Ba. The resulting glaze will be
different, but of a kindred spirit. Try subbing whiting, too.
steve grimmer
snowy carterville, illinois
Karen Gringhuis on fri 11 apr 97
Mike - The relationship can be one to one or 0.75 to 1 but I forget
how it goes. I did this test once and Sr worked fine in a blue glaze
but the sub in Woo Yellow was deemed NOT satisfactory.
Karen Gringhuis
Doug Gray on sat 12 apr 97
Mike MacMahon wrote:
>
> ----------------------------Original message----------------------------
> I know I,ve seen the answer, but haven't been able to find the
> source. I,m looking for the general replacement percentage of strontium
> carb. to barium carb.
I don't remember the exact year, maybe 1992 0r 3, Ceramics Monthly
published an article that suggested substituting .75% strontium for
every 1% barium. So if your recipe calls for 8% barium you would use
only 6% strontium.
The article was not published in the regular magazine edition, but in
the supplumental edition that comes out at the beginning of the year.
Doug Gray
Alpine, TX
Drew Montgomery on sat 12 apr 97
For 100 barium use 75 strontium
Drew Montgomery
| |
|
