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dunting

Posted On December 5, 2008 0 Comments
Traditional term referring to serious cracking occurring in cooling, resulting from drawing too soon, from extreme excessive glaze-compression, or from low thermal shock-resistance in overvitrified wares resulting from overfluxing and/or over-firing. Source: Clay: A Studio Handbook

drill-mixer

Posted On December 5, 2008 0 Comments
Electric-drill-mounted impeller-mixer excellent for mixing glazes, slips, and slurries and for blunging casting-slip. Source: Clay: A Studio Handbook

drawing

Posted On December 5, 2008 0 Comments
The removing of wares from a kiln. Source: Clay: A Studio Handbook

draw rings; draw trials

Posted On December 5, 2008 0 Comments
In vapor-glaze firing, small rings of clay, formed to stand vertically, which are placed inside a peephole and may be removed with an iron rod during the firing, quenched in water, and examined to determine the degree of glaze deposition. Source: Clay: A Studio Handbook

draft

Posted On December 5, 2008 0 Comments
The flow of exhaust gases out of a fuel kiln, affecting intake of flames and secondary air. Source: Clay: A Studio Handbook

downdraft

Posted On December 5, 2008 0 Comments
Kiln where exhaust gases exit through flue at floor level. Source: Clay: A Studio Handbook

dolomite; calcium/magnesium carbonate

Posted On December 5, 2008 0 Comments
MgCO3×CaCO3—High temperature alkaline earth flux, promotes hard, durable surfaces and recrystallization/matting in glazes. Often added to claybodies to give longer firing range and can promote more durable low-fire bodies. Source: Clay: A Studio Handbook

dissolution

Posted On December 5, 2008 0 Comments
Action of a solvent material on a solid, bringing it into liquid solution. Source: Clay: A Studio Handbook

dispersoids

Posted On December 5, 2008 0 Comments
In glaze-melt, inclusions that disperse throughout the melt without actually dissolving into the glassy-phase. Source: Clay: A Studio Handbook

dispersion

Posted On December 5, 2008 0 Comments
Natural tendency of materials in liquid solution to go from area of high concentration to area of lower concentration, resulting in even distribution of materials throughout the glaze melt. Source: Clay: A Studio Handbook