Nikki Jackson on wed 31 mar 04
I'm not claiming any personal expertise in this area,
but I do want to mention that bone china was originally
developed to compete with porcelain imported from the Far East,
but isn't exactly a porcelain.
It is usually bisque fired to 2236=BAf (about ^9)
in setters that fully support the form,
by which time it is vitreous enough to be translucent,
and then glaze fired below 1976=BAf (approx ^04).
I thought they had just given me the info backwards
when I first heard that since I was used to bisque temps being lower
than glaze temps, but that really is how its fired.
I would think that a cone 6 porcelain slip would be a better vehicle
for dolls heads.
Nikki, in New Orleans where spring is so wonderful ... and so short!
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