Soda-Fired Flameware at EAC 2011

Fired Spring 2011 at Edina Art Center.

Clay body is orange-brown flameware by Val Cushing: recipe
White glaze is Flameware Glaze #2 by Rob Probst: recipe
Both adapted by Tetsuya Yamada
Black glaze is the same as above, with #6600 Mason Stain by Continental Clay
Decorative Iron is iron & flux by EAC
Other glazes by EAC
Soda-fire procedure here

Clay body rolled 1/2'' to 1/4'' and formed with plaster molds.

Notes:
Soda blasting causes glaze and clay body to whiten and becomes sparkly and brittle.
Place pieces center and high to get hottest temp possible.
Thin glaze reacts better w/ soda (see small bowl below)

Quiche dish 8'' x 1.5'' Black interior.

Same; doily texture applied while rolling.

Ceramist who Used To Be in Taiwan and is Now in Japan

and originally came from Minnesota. It's such a small world!

Jon Nibbe
Special Exhibition at Yingge Ceramics Museum. Graduate from Tainan.

Ceramist in Taiwan

David Morris

Website

Katsuyo Aoki

Website

Intricate porcelain sculpture.

Baroque influence -- remind me of Jomon flame pots.

Soda kiln

From Edina Art Center

soda spray: 2 lb soda to 1 gallon water
soda granola: 8 lb soda 1.5 gallon water 1/4 cup salt 11.5 handfuls sawdust

method: @ cone 9 spray, dump granola, and agitate twice per side. Recover heat. Repeat 4 times til cone 10.

Notes:
Dump AWAY from kiln shelves.
Line metal with newspaper to facilitate granola release.

Soda Fire cont'

Wheel thrown @ 4 lb. Final weight ~2 lb.
Fireclay w/ Fe, white slip design
Flashing slips applied after bisque: Shino, Tile Six (T-6), Sandra's Red
Decorative iron
Glazes: Opal, TC Purple
Placement: Floor

22 x 22 x 5 cm (8.6'' x 8.6'' x 2 '') Top view.

The orange peel texture is caused by soda. This piece was blasted, and most of the slip detailing was lost. The TC purple turned into that translucent blue. The opal is that bluish-gold bit near the brown area; the gold is from the decorative iron.

Soda Fire with Flameware! First Batch

These are from the new soda fire kiln at the Edina Art Center, a downdraft gas kiln with 2 gas inputs.
340 pounds were loaded onto 3 stacks (front, middle, back).
Kiln took 14 hours to fire to cone 10-ish (cone 11 down, on account of soda making things droopier).
1 hour body reduction achieved.
Soda was dumped and sprayed at cone 9.

Back stack had some oxidation.


Flameware test tile plate with Probst #2 straight and tinted with black mason stain, with decorative iron on top and underneath. 6.5'' x 6.5'' x 1'' (16.5 x 16.5 x 2.5 cm)

This piece was cracked in the bisque, but the glaze softened the cracked edges considerably, and I will use it as a serving platter as is. It is not suitable for cooking due to the cracking.