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Transcript of CLAY
![Page 1: CLAY](https://reader036.fdocuments.net/reader036/viewer/2022070400/56813494550346895d9b80ae/html5/thumbnails/1.jpg)
CLAY
Carty 2013
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Chards• A chard is a historic or prehistoric fragment of
pottery, although the term is occasionally used to refer to fragments of stone and glass vessels as well.
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Residual Clay
• Clay which has remained in the place where it was formed by nature.
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Sedimentary Clay
• Clay which has washed down from the place where it was formed by nature, picking up impurities along the way.
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Greenware• Greenware is the term given to clay objects
when they have been shaped but have not not yet been bisque fired, which converts them from clay to ceramic. Greenware may be in any of the stages of drying: wet, damp, soft leather-hard, leather-hard, stiff leather-hard, dry, and bone dry.
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Bisqueware• Bisque (noun) refers to ware which has been
fired once and has no chemically bonded water left in the clay. Bisque is a true ceramic material, although the clay body has not yet reached maturity.
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Slip
• Slip is liquid clay of about the consistency of heavy cream. Can be used in mold-cast pottery when poured into a plaster mold. It is also used as an adhesive and decorative device.
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Scoring• Scoring means to cross hatch the clay or
scratch heavily into it. It is used to decorate and to prepare surfaces to be bonded together.
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Incise• Incise means to cut lines or shapes into the
clay.
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Sgraffito• Sgraffito comes from the Italian word for
scratch. It refers to the lines, textures, or designs which have been scratched into the clay.
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Pinch
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Coil
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Slab
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Colors: Red Iron Oxide
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Colors: Cobalt Oxide
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Colors: Cobalt Carbonate
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Colors: Rutile
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Colors: Copper Carbonate
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Colors: Manganese Dioxide
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Colors: Manganese Carbonate
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Colors: Tin Oxide
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Pyrometer• A pyrometer is an instrument for measuring
high temperatures, esp. in furnaces and kilns.
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Cone Pack• Pyrometric cones are used to measure the
effect of the kiln's atmosphere on the glazes being fired. Cones are made up of refractories, such as silica, and melting agents; each type of cone is carefully formulated and manufactured for accuracy.
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Famous potters in North Carolina
• Cynthia Bringlehttp://www.cynthiabringlepottery.com/
• Jane Peiser• http://www.janepeiserpottery.com/• Raku pottery• http://
www.youtube.com/watch?v=j5gpu5ynCxg
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Stages of Ceramics
• http://www.ehow.com/video_2379027_stages-pottery-glazing.html
• http://www.youtube.com/watch?v=as6mtq6hxRY