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deposited clays; sedimentary clays; secondary clays

Posted On December 5, 2008 0 Comments
Clays that have been transported away from their point of geologic origins by wind or water. 

deflocculate; deflocculation

Posted On December 5, 2008 0 Comments
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. 

deairing

Posted On December 5, 2008 0 Comments
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

Darvan

Posted On December 5, 2008 0 Comments
Common deflocculant for casting slips. Product of R.T. Vanderbilt Company. Source: Clay: A Studio Handbook

damper

Posted On December 5, 2008 0 Comments
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

damp cabinet

Posted On December 5, 2008 0 Comments
(also damp box, damp closet, damp room) A reasonably airtight cabinet or room in which damp ceramic forms can be stored temporarily to slowly dry, protected from harmful air currents.