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
Action of a solvent material on a solid, bringing it into liquid solution. Source: Clay: A Studio Handbook
In glaze-melt, inclusions that disperse throughout the melt without actually dissolving into the glassy-phase. Source: Clay: A Studio Handbook
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
The phenomenon that occurs early in the glaze cooling cycle, when certain materials crystallize out of the vitrified (fused) mass. Source: Clay: A Studio Handbook
Clays that have been transported away from their point of geologic origins by wind or water.
Process of adding an alkaline (usually) material (deflocculant) to a suspension, which introduces like electrical charges to all particles, causing them repel one another and remain in suspension.
The process of removing the air from a plastic clay mass, usually accomplished through wedging, or far more effectively with a vacuum deairing pugmill. Source: Clay: A Studio Handbook
Common deflocculant for casting slips. Product of R.T. Vanderbilt Company. Source: Clay: A Studio Handbook
In fuel-burning kilns, adjustable refractory plate located in exhaust flue, allowing control of back-pressure and secondary air, regulating kiln atmosphere. Source: Clay: A Studio Handbook