The document provides a history of ceramics, beginning with the earliest recorded ceramic piece from around 6000 BC. It describes how clay is formed from rocks and earth and can be shaped when wet. It discusses various firing techniques including wood firing and electric/gas kilns. Key terms like bisque, glaze, and ceramic are defined. The development of the potter's wheel and hand building techniques are also summarized.
8. There will never be a shortage of clay because the Earth is always making more.
9. Clay feels like a plastic material that can easily be formed to many shapes when it is wet.
10. Key Terms Clay: naturally occuring substance which is a heavy and damp plastic material that ‘sets‘ upon drying and can be changed by heat into a hard, generally dense, material. Bisque - Unglazed ceramic peice purposely fired to an immature temperature. Glaze - A layer of glass fused into place on a ceramic piece. Glazes can be both decorative and as a texture. Ceramic: clay products made permenant by heat (1112F or greater)
11. Key Terms High-fire: clay and glazes which mature at or above 2192F. Low-fire: clay and glazes maturing at or below cone 04 (~1922F) Electric kiln - Any kiln heated using electrostatic elements. Because no fuel is introduced, electric kilns fire in oxidation. Gas kiln - A kiln which uses natural gas as its fuel. Gas kilns are commonly found in contemporary ceramic studios and factories.
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14. Ceramics are placed in an outdoor kiln made up of bricks (or other material) equipped with a chimney. Wood is placed inside the kiln with the ceramic wares.
15. There is a steady flow of wood placed in the kiln at about 10 minute intervals.
16. Ash from the wood will glaze the ceramics. The colors depend on the type of wood used.
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18. The actual firing will last about two-three days, and the cooling down process takes up the rest of the time.
19. It is important to let the ceramics cool off before they are removed from the kiln. The ceramics will be exposed to the different temperature too fast and they will shatter.
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21. The founders were: Elmer Gorton, Samuel Geijsbeek, Albert Bleininger, Edward Orton, Jr., Willard Richardson, Ellis Lovejoy, Gustav Holl, William Gates, and Carl Giessen.
22. They came together to share ideas and scientific methods concerning ceramics.