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Tube-like single chamber hill kiln;
predecessor of noborigama, a multi-chamber hill kiln of Oriental style[image] |
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| The residue made by burning tree, plant, or vegetable material; can be used alone or with other materials for glaze; vocanic ash can also be used |
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| highly plastic refractory clay that fires off-white; workable, fine-grained sedimentary clay used in white bodies, englobes, and glazed[image] |
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| Any slab used as a base for throwing or hand-building clay; also applies to a trough used to dry slurry clay to the plastic state; usually made of plaster, press board, ply-wood, or other porous materials[image] |
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| A mixture of a glaze or englobe ingredients calculated by parts or weight |
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unglazed, but fired ware usually accomplished in a low temperature firing prior to a glaze ware fired high, as in procelain bisque
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bubbles formed in the glaze during the firing due to the liberation of gases caused by firing that is too fast; or caused by deliberately putting into the glaze a material such as trisodium phosphate, which will promote decorative bloats
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| a mechanical machine for mixing liquid or slurry clay[image] |
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| A combination of natural clays and non-plastics, especially formulated to have certain workability and firing characteristics |
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| porcelain of high translucency made with bone ash as the flux, produced mainly in England and Japan[image] |
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| polishing with a smooth stone or tool on a leather-hard clay or slip to make a surface sheen; the surface will not stay shiny at temperatures above 2000 F (1100 C)[image] |
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process of forming shapes by pouring deflocculated liquid clay slip into plaster molds for repetitive production
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sea-green glaze with percentage of iron as the colorant; fired in a reduced oxygen atmosphere, usually a stoneware or procelain glaze, first used in the Orient
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pushing a mass of clay toward the center with the centrifugal motion of a potter's wheel
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Art and science of forming objects from earth materials containing or combied with silica, produced with the acid of heat treatment at 1300 F (700 C)
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(1) A porcelain clay body, with up to 1% absorption, usually translucent
(2) Whiteware, vitreous and hard, sometimes translucent
(3) A general term used in trade when discussing any kind of tableware.
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primary or secondary kaolin, refractory, not very plastic, white-burning, rare in the world; used in the blending of all whiteware and porcelain bodies.
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Theoretically (Al2)3-2SiO2-6H2O; earth materials formed by the decomposition of igneous rock; when combined with water, clay is plastic enough to be shaped; when subject to red heat or above it becomes dense and rock-like
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Age-old method of constructing hollow forms by rolling and attaching ropes of soft clay
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pyrometric cones, Orton or Seger brand; pyramids made of clay and glaze constituents that blend at a specific temperature. Cones are placed in the kiln during the firing to indicate the final heat; they are classified by numbers coded to their softening poing
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| The interior of a piece, or a framing or the stuffing on or over which work can be supported; combustible |
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decorative and intentional fissures netting the surface of a glaze due to a variation of expansion and contraction of the glaze and the clay body
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glaze that has separated into mounds on the clay surface during firing, generally caused by fluffy or high-shrink materials in raw glazes
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adjustable shutter control draft at the kiln flue
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Ceramic pigments photo-screened or pattern-screed onto flexible decal paper for transfer to bisque or overglaze; can be bought or made
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the addition of a catalyst to a clay and water slip to reduce the amount of water required to about 40% by weight
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kiln with fire entering at the side or base, where heat is forced around, up, and down through teh ware, and exits via a flue at the back of the chamber
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no glaze on the foot rim; used for stoneware and porcelain rather that the stilt method used for earthenware; stilts would warp the piece when fired to these higher densities
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