Actually I figured out how to select English from the menu that appears at the bottom of my android phone. (Click on the 3 dots and select 'More languages'.)
Thanks Martin S. I'll be interested to hear about your results. I have had some limited success using black iron oxide with charcoal in a saggar as described above. I'll be looking at combining the technique with a silicon carbide glaze, maybe a SiC underglaze slip (a very intriguing idea!) as most recently posted by Peter H. Peter - I couldn't download a copy of that paper- it seemed to be in Farsi or Arabic, but I have requested a copy from researchnet.
Hi again, why_not, what were the proportions of black iron oxide and charcoal?
Has anyone else tried this? With the iron/charcoal mix or maybe using combustible materials instead?
You wrote: "It's not expansion of air that causes explosions. It's expansion of water."
OK, thanks. But what about the saggar? Is it fully sealed? How was it sealed?
Thanks again, Steven
Hi, I know this is an old post, but I'm also interested to know how you sealed the saggar. And if it's completely sealed, will expansion of the inside atmosphere not crack it? Is there a pinhole so pressure can even out? Thanks, Steven, ONE Pottery, Melbourne, Australia..