click below
click below
Normal Size Small Size show me how
Pottery Vocab. #2
Question | Answer |
---|---|
Refers to clay which is ready to be fired. All the moisture is gone from the clay. Clay is VERY FRAGILE at this stage. | bone dry |
not shiny | matte finish |
A form which is used to support wet clay in the early stages of construction | slump mold |
Forming clay on a potters wheel. | throwing |
Forming clay on a potters wheel. | turning |
Colored decoration applied to bisqued clay, then coated with a clear glaze. Typically made of clay slip and raw pigment. | underglaze |
Quality of clay that allows it to be manipulated and still maintain its shape without cracking or sagging. | plasticity |
a type of clay known for its translucency and whiteness. | porcelain |
from the Italian word meaning "scratched through" ... this is done by incising or cutting a design through a colored slip coating to reveal the clay body. | sgraffito |
Instrument used to record the exact temperature of the kiln. | pyrometer |
Pottery that is fired normally but removed when it is red hot and the glaze is molten. It is then usually placed in a bed of combustible materials and covered, creating intense reduction resulting in irregular surfaces and colors. | raku |
glazing pottery by immersing it in a large pan or vat of glaze | dipping |
the ring-like base of a ceramic piece, usually formed by tooling the excess clay | foot |
a glaze developed by throwing salt into a hot kiln; the salt vaporizes and combines with the silica in the body to form sodium silicate, a hard, glassy glaze | salt glaze |
a broken fragment of pottery | shard |
trimming the walls and foot of a pot on the wheel while the clay is leather-hard | tooling |
Pushing a mass of clay toward the center with the centrifugal motion of a potter’s wheel. | centering |
Forcing plastic clay through an auger or form, mechanically or by hand, to change its shape; can be solid or hollow. | extrusion |
A method of decorating with slip or glaze squeezed out of a bulb from a small orifice or poured from a narrow lip. | trailing |