Presentation on theme: "Bat A flat disc made out of plaster, wood, or plastic which is affixed to the wheel head with clay or pins. Bats are used to throw pieces on that would."— Presentation transcript:
A flat disc made out of plaster, wood, or plastic which is affixed to the wheel head with clay or pins. Bats are used to throw pieces on that would be difficult to lift off the wheel head.
A revolving wheelhead which sits on a pedestal base. It is turned by hand and used for finishing or decorating pottery.
The ancient rubbing process of burnishing polishes the outside skin of a clay pot while greatly reducing its porosity. This finishing is done by hand, using a stone or a metal piece.
A piece of clay rolled like a rope, used in making pottery.
3 things wedging does
1.Removes air bubbles. 2.Mixes hard and soft clay. 3.Gets clay particles moving in one direction.
A structure for firing ceramics.
Firing atmosphere characterized by the presence of excess oxygen. Under such conditions, the fire burns cleanly and total combustion results.
Firing technique in which fuel and vessel are placed together in an excavated pit, sometimes covered with stones or earth.
The ability of clay to be molded and maintain its shape.
Firing atmosphere characterized by the shortage or absence of oxygen. Under such conditions, combustion will be incomplete and carbon monoxide will be created.
The simplest method of pottery manufacture, involving the opening out and expanding of a ball or cone of clay by squeezing the clay between the fingers, while the shape is supported by and turned in the potter's hand. It tends to result in small, round-based, open shapes (such as bowls).
Hand-building technique which involves forming flat slabs of clay and connecting them to form a vessel
Liquid mixture of clay and water that can be applied over surface of vessel to affect color and texture. It can be used to attach clay pieces together.
The term used to describe vessels that have been made on the potter's wheel.
Carving designs into leather hard clay.
Clay that has been fired once. This clay will not break down in water.
Glaze is a group of chemicals mixed in water that when fired to the proper temperature will form a waterproof surface on your pottery that is similar to glass.
BONE DRY clay
Clay that has no moisture. Clay in this form is ready to fire.
LEATHER HARD CLAY
Still slightly wet and can be formed and carved. Leather hard clay is stiff and holds its shape when handled.
Clay that has not been fired. Includes leather hard and bone dry.
Stains are the chemicals used in glazes to create colors. They can be mixed with clay to change the color of the clay. Some stains that we use are Red Iron Oxide, Cobalt Carbonate, Copper Carbonate, and Rutile.
Second firing where glazes melt on to the pottery.
Blistering refers to the appearance of broken bubbles found on the glazed surfaces of fired ceramic pieces.
The foot refers to the bottom of a ceramic item.
Translucent refers to transparent color, allowing color underneath to show.
Stencil refers to the process of using paper perforated with a design through which color can be brushed or sponged onto a surface.
Stilts are supports used to separate a glazed article from a shelf during firing.
Score refers to the process of scratching tiny criss-cross lines on areas of greenware that will be fastened together.
A Palette Knife is a flexible knife with no sharp point used for mixing or stirring color.
Opaque refers to nontransparent color.
Kiln Furniture consists of implements used to make full use of a kiln's capacity (shelves, posts and stilts).
Kiln Wash is a coating used on the tops of kiln shelves and kiln floors to protect them from glaze drippings.
Greenware is the term used for unfired clay articles.
Glaze is a fired finish consisting of a prepared mixture of frit that produces a glass-like surface when fired.
Crawling refers to a glaze defect in which the glaze pulls away or crawls away from the bisque, leaving bare bisque areas.
Crazing refers to a glaze defect in which hairline cracks appear on a fired glaze surface.
Banding refers to applying color or texture to ware in decorative bands.
The edge of the vessels opening.
Part of jar or restricted vessel between body and rim, marked by constriction and change in orientation of vessel walls.
A tool used to measure the diameter of round forms, for example calipers are used to get lids to fit just right
Technique to move the clay in to a symmetrical rotating axis in the middle of a wheel head so you can throw it.
A piece used to aid the potter in trimming. A chuck is a form that can hold a pot upside-down above the wheel head while the potter trims it. Chucks are thrown and bisque fired clay cylinders which are open on both sides.