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Studying Ceramics Vocabulary

Studying Ceramics Vocabulary. AIR POCKETS. Air which is trapped inside the body of the clay. This expands and can create explosion in the kiln. Wedging clay before use is a good way to avoid this problem. BASE.

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Studying Ceramics Vocabulary

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  1. Studying Ceramics Vocabulary

  2. AIR POCKETS

  3. Air which is trapped inside the body of the clay. This expands and can create explosion in the kiln. Wedging clay before use is a good way to avoid this problem.

  4. BASE

  5. A slab or platform on which clay is handled; a circular device attached to the wheel-head.

  6. BISQUE

  7. Unglazed clay, fired once at a low temperature. Ceramic piece will not blow up in firing.

  8. BISQUE FIRING

  9. The first firing of unglazed ware; this removes all moisture from the clay and prepares it for further steps like glazing. The approximate temperature of this firing is 1815 F.

  10. BONE DRY

  11. The condition of unfired clay when it is as dry as possible prior to firing.

  12. CENTERING

  13. The act of aligning the clay on the potter’s wheel in order to proceed with forming and shaping.

  14. CERAMICS

  15. The art of making things of clay. Clay is an ancient tradition.

  16. CLAY

  17. A decomposed granite-type rock. To be classified as clay, the decomposed rock must have fine particles so that it will be plastic (see definition below). Clays contain impurities which affect color and firing temperatures.

  18. CLAY BODY

  19. A mixture of clay and other materials selected to produce particular characteristics to meet the ceramist’s needs.

  20. COIL

  21. A long roll of clay.

  22. COIL CONSTRUCTION

  23. Rope like pieces of clay that are stacked to form a wall and build the object. This technique is one of the most commonly used hand-building methods. The size of the coils can vary but must be slipped and scored into place or one side in blended to create strength.

  24. FIRE

  25. To bake in a kiln. Firing is a term used for “cooking” the clay.

  26. FOOT

  27. A slightly raised area or ring on the bottom of a pot.

  28. FORM

  29. Three-dimensional shape and structure of an object.

  30. GLAZE

  31. A compound of materials that is applied to the surface of greenware or bisqued ware and that forms a glassy coating when fired.

  32. GLAZE FIRE

  33. Much hotter than a bisque fire. Firing to a temperature at which glaze melts to form a glasslike surface.

  34. GLAZE FIRING

  35. Typically the second firing that reaches temperatures at which glazes will melt. The approximate temperature of this firing 2300.

  36. GLOSS

  37. A shiny surface.

  38. GREENWARE

  39. Pottery that has not fired. It is bone-dry, a state in which clay forms are the most fragile.

  40. GROG

  41. Ground fired clay that is added to a clay body to reduce shrinkage and warping.

  42. HANDBUILDING

  43. One of the oldest craft techniques in which objects are constructed entirely by hand.

  44. INCISING

  45. Indenting a line into a flat surface.

  46. KILN

  47. A furnace built for firing ceramic ware. It is built of refractor brick & heated by electricity, gas, oil or wood to temperatures from 1500 F to 2340 F.

  48. KILN FURNITURE

  49. Pillars and stilts which hold pieces during the 2nd firing. Shelves to make various levels within the kiln.

  50. LEATHER HARD

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