The following vocabulary needs to be learned:

Thermal Expansion

Forms of Silica

• Silica,
• Flint,
• Alpha Quartz, Beta Quartz,
• Cristobalite,
• Silica Glass

Quartz Inversion, Silica Glass, and the role of silica in crazing resistance.

Formula for Clay

• Al2O3-2SiO2-2H2O

The three columns of a unity formula and the basic function of each:

• Fluxes, Alumina, Glass Formers

Components of Generic Feldspar

• Soda and or Pottash,
• silica,
• alumina

Which oxides are the Alkaline Metals? See a periodic table for more information

• Soda, Na20
• Potash K2O
• Lithia Li2O

Which are the Alkali Earths?

• Calcia CaO
• Magnesia MgO
• Baria BaO
• Strontia SrO

What is Whiting? Dolomite?

What colors are associated with these colorants:

• Cobalt Oxide
• Chrome Oxide
• Copper Oxide
• Iron Oxide
• Tin Oxide
• Zirconium Silicate

What is Ball clay? What is its most important property in a clay body? What kinds (brands) do we use?

What is fire clay? What is its most important property in a clay body? What kinds do we use?

What is Kaolin? What kinds or brands do we use?

What is EPK?

How are cones ordered from cold to hot? Is 04 hotter or colder than cone 2, 02, 010, 11, 020

Reduction, shortage of O2,. presence of CO , yellow or smokey flame,flame at flue, unclear atmosphere, usually backpressure. Island Celadon fires green.

Oxidation, excess of O2, little or no CO, blue clean flame, no flame at flue, clear atmosphere. no packpressure. Island Celadon tends towards yellow.

Neutral, in the middle between oxidation and reduction.

Bisque temperature 1825-50 degrees F. Cone 06

Glaze firing Cone 9-10. ~ 2280-2350 degrees F

Kilns

Updraft, Downdraft, Crossdraft

Chimney, Flue, Damper

Bagwall

Burnerport, burner, flame retention ring,

Primary air, Secondary air

Hard Firebrick/ Soft Firebrick

Halfbrick, Soap, Cigarette tile

K(or G)-23,26,20

Ceramic Fiber. Fierfrax , Kaowool