Clay is raw material, clay body has been processed
Clay is mud, clay body is mud with extra water
Clay has been processed, clay body is raw material
Which is primary clay?
Kaolin
Surface clay
Fire clay
Which two are secondary clay?
Fire clay, Surface clay
Kaolin, surface clay
Fire clay, kaolin
What makes porsilin?
Kaolin
Surface clay
Fire clay
Clay body
What makes stoneware?
Fire clay
Surface clay
Kaolin
Clay body
What makes earthenware?
Kaolin
Surface clay
Fire clay
Clay body
3 temperatures you should know
212, 451,1941 degrees
251, 421, 1921 degrees
219, 441, 1221
What is the name of the first firing of clay?
What is the name of the second firing of clay?
What is the temperature range for quartz inversion?
900-1200 degrees
451-1941 degrees
800-1300 degrees
900-1300 degrees
Short definition for slip
Which clay stage is darker in color?
Leather hard
Bone dry
Earthenware
Which clay stage is lighter in color?
Bone dry
Leather hard
Earthenware
3 things to control to get temperature to rise
Oxygen
Fire
Gas
Lighter fluid
What is a pyrometric cone?
Measures time and temperature
Measures humidity
Measures clay weight
Measures carbon
Measures oxygen
What are the oxides and their colors?
Cobalt (Blue)
Iron (Red)
Copper (Green)
Cobalt (Green)
Copper (Blue)
Iron (Blue)
Copper (Red)
3 things in glaze
Alumina
Silica
Flux
Oxygen
Water
What is glaze?
Glass
Sugar
Paper
Cotton
What is alumina's purpose in glaze?
Binder
Glass former
Reduces melting point
What is silica's purpose in glaze?
Binder
Glass former
Reduces melting point
What is flux's purpose in glaze?
Binder
Glass former
Reduces melting point
4 true things about clay
Sufficiently wet is maluable
During all stages it will shrink
Volcanic source
If fired up to sufficient heat, itll get hard
Its found in earth
Can be found anywhere
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