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ceramic fiber

Posted On December 5, 2008 0 Comments
Ceramic insulating material composed of spun kaolin fibers—available in blanket form, braided tape, rigid board, and tubular flue liners. Highest insulating rating of standard refractories, but can release carcinogenic fibers. Source: Clay: A Studio Handbook

centering

Posted On December 5, 2008 0 Comments
Critical step in throwing, occurring during and after wheel wedging, whereby the clay mass is formed into a symmetrical lump before penetrating and raising walls. Source: Clay: A Studio Handbook

celadon

Posted On December 5, 2008 0 Comments
Classic East Asian transparent or translucent glaze with small percentages of iron and/or copper and/or chrome, giving range of soft greens, blue-greens, and gray-greens. Most desirable Chinese celadons often contain minute air-bubble inclusions, giving slight opalescence. Source: Clay: A Studio Handbook

catenary arch

Posted On December 5, 2008 0 Comments
A parabolic kiln arch requiring no buttressing or steel frame; laid out by hanging a chain from two points and marking the resulting curve. Source: Clay: A Studio Handbook

castable

Posted On December 5, 2008 0 Comments
Short for castable refractory—a refractory mix that can be cast into molds to form kiln parts. Source: Clay: A Studio Handbook

carpal tunnel syndrome (CTS)

Posted On December 5, 2008 0 Comments
Serious affliction of the wrist resulting from excessive and/or stressful repetitive-motion activity such as hand wedging clay. Source: Clay: A Studio Handbook

carbon-trapping

Posted On December 5, 2008 0 Comments
Usually purposeful effect where carbon is trapped within surface of the glaze, giving smoky shaded areas, especially in shino glazes. Encouraged by slightly early body reduction; can be promoted in high-fire by brushing saturated soda ash solution over glaze. Source: Clay: A Studio Handbook

Carbondale clay

Posted On December 5, 2008 0 Comments
Refractory red stoneware clay, used to obtain rich red and brown colors in high-fire claybodies. Source: Clay: A Studio Handbook

carbon coring

Posted On December 5, 2008 0 Comments
Firing defect where excessively fast bisque-firing and/or excessive early reduction retard outgassing, causing carbon and sulfur to be trapped within claybody. 

car kiln; shuttle kiln

Posted On December 5, 2008 0 Comments
Kiln where kiln floor and often the door are mounted on a car that may be rolled in and out of kiln on tracks. Sometimes has two cars, with doors in both ends of the kiln. Source: Clay: A Studio Handbook