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1 11 21 31 2 12 22 32 3 13 23 33 4 14 24 34 5 15 25 35 6 16 26 36 7 17 27 37 8 18 28 38 9 19 29 39 10 20 30 40. Define the following term:. Bat. A flat disc made out of plaster, wood , or plastic which is affixed to the wheel head with clay or pins. - PowerPoint PPT Presentation
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Define the following term:
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 be difficult to lift off the wheel
head.
Define the following term:
Banding Wheel
A revolving wheelhead which sits on a pedestal base. It is turned by hand and used for finishing or decorating pottery.
Define the following term:
Burnishing
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.
Define the following term:
Coil
A piece of clay rolled like a rope, used in
making pottery.
List:
3 things wedging does
1.Removes air bubbles.
2.Mixes hard and soft clay.
3.Gets clay particles moving in one direction.
Define the following term:
Kiln
A structure for firing ceramics.
Define the following term:
Oxidation Firing
Firing atmosphere characterized by the presence of excess oxygen. Under
such conditions, the fire burns cleanly and total combustion results.
Define the following term:
Pit firing
Firing technique in which fuel and vessel are placed together in
an excavated pit, sometimes covered with stones or earth.
Define the following term:
Plasticity
The ability of clay to be molded and maintain its shape.
Define the following term:
Reduction Firing
Firing atmosphere characterized by the shortage or absence of oxygen. Under
such conditions, combustion will be incomplete and carbon monoxide will
be created.
Define the following term:
Pinch pottery
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).
Define the following term:
Slab building
Hand-building technique which involves forming flat slabs of clay and connecting them to form
a vessel
Define the following term:
Slip
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.
Define the following term:
Wheel-thrown
The term used to describe vessels that have been made on the potter's wheel.
Define the following term:
SCRAFFITO
Carving designs into leather hard clay.
Define the following term:
BISQUE ware
Clay that has been fired once. This clay will not break down in water.
Define the following term:
GLAZE
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.
Define the following term:
BONE DRY clay
Clay that has no moisture. Clay in this form is ready to fire.
Define the following term:
LEATHER HARD CLAY
Still slightly wet and can be formed and carved. Leather hard clay is stiff and holds its shape when handled.
Define the following term:
GREENWARE
Clay that has not been fired.
Includes leather hard and bone dry.
Define the following term:
STAIN
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.
Define the following term:
GLAZE FIRE
Second firing where glazes melt on to the pottery.
Define the following term:
Blistering
Blistering refers to the appearance of broken bubbles found on the glazed surfaces
of fired ceramic pieces.
Define the following term:
The Foot
The foot refers to the bottom of a ceramic item.
Define the following term:
Translucent
Translucent refers to transparent color, allowing color underneath to show.
Define the following term:
Stencil
Stencil refers to the process of using paper perforated with a design through which color can be brushed or sponged
onto a surface.
Define the following term:
Stilts
Stilts are supports used to separate a glazed article from a shelf during firing.
Define the following term:
Score
Score refers to the process of scratching tiny criss-cross lines on
areas of greenware that will be fastened together.
Define the following term:
Palette Knife
A Palette Knife is a flexible knife withno sharp point used for mixing or
stirring color.
Define the following term:
Opaque
Opaque refers to nontransparent color.
Define the following term:
Kiln Furniture
Kiln Furniture consists of implements used to
make full use of a kiln's capacity (shelves, posts
and stilts).
Define the following term:
Kiln Wash
Kiln Wash is a coating used on the tops of kiln shelves and kiln floors to protect them from
glaze drippings.
Define the following term:
Greenware
Greenware is the term used
for unfired clay articles.
Define the following term:
Glaze
Glaze is a fired finish consisting of a prepared
mixture of frit that produces a glass-like surface when fired.
Define the following term:
Crawling
Crawling refers to a glaze defect in which the glaze pulls away or crawls away from the bisque, leaving bare
bisque areas.
Define the following term:
Crazing
Crazing refers to a glaze defect in which hairline cracks appear on
a fired glaze surface.
Define the following term:
Banding
Banding refers to applying color
or texture to ware in decorative bands.
Define the following term:
Lip
The edge of the vessels opening.
Define the following term:
Neck
Part of jar or restricted vessel between body and rim, marked by
constriction and change in orientation of vessel
walls.
Define the following term:
Calipers
A tool used to measure the diameter of round
forms, for example calipers are used to get
lids to fit just right
Define the following term:
Centering
Technique to move the clay in to a symmetrical
rotating axis in the middle of a wheel head
so you can throw it.
Define the following term:
Chuck
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.