I stepped into the high fire realm yesterday, trying new clay, new glaze recipes, a 2345deg (1285c) oxidation firing and slow cool. To say the least I was quite excited when I opened the kiln a little while ago. The following were the best out of the 10pot I made.
The clay used was a ^10 Toki sculpture paperclay, it very moist and sticky. Took some time to get used to handbuild because it sticks to everything, to combat that I let it sit exposed over night to dry out some and made it much easier to work with. It's not intended for the wheel, don't tell me that! made some interesting forms, doesn't throw like normal clay. Slab building is so much easier! Roll it out, cut to shape, dry to a bone state and assemble. Made 4 pots this way and each one is perfectly square with straight sides.
I wanted to try ash glazes but everything I've read was for a reduction burn, purchased a book on ash glaze making and there was 3 paragraphs on oxidation firing and not much information regarding the process. When over to my sisters house, cleaned her fireplace out and came home and started sifting. Made 3 recipes, ochre, an artificial reduction ochre and a 50/50 mix of ash and earthenware clay. Also did a couple of oxide washes and commercial dry celadon. I did not want pots being glazed to the shelves so I did thin applications since I was entering the unknown, will try thicker coats next time.
3in tall ochre
2in tall RIO wash
4in wide 50/50
2in wide artificial reduction ochre (lovely blues out of something I thought was going to have more yellow)
4in wide RIO wash
14in wide oval, RIO wash with celadon on the rim