Study Guide- Ceramics

Question 1

Kaolin

Answer 1

pure clay, used in porcelain clay bodies. Used in other clay bodies, such as some stoneware bodies, and in glazes. Highly refractory and stuff

Question 2

Ball clay

Answer 2

secondary clays deposited in marshy areas. Fine particle size, high plasticity, high drying shrinkage, high in organic contaminantes , fire white or off-white

Question 3

Banding wheel

Answer 3

a revolving wheel head, which sits on a pedestal base, it is turned by hand and used for finishing or decorating pottery

Question 4

Bisque

Answer 4

pottery, which has been fired once, without glaze, to a temp just before vitrification

Question 5

Bisque fire

Answer 5

first firing, without glaze. Slips can be used in bisque firing

Question 6

Bone dry

Answer 6

completely air-dried

Question 7

Clay

Answer 7

alumina + silicia + water

Question 8

Coil

Answer 8

a piece of clay rolled like a rope, used in making pottery

Question 9

Compress

Answer 9

pushing the clay down and together, forcing the particles of clay closer

Question 10

Cone

Answer 10

Pyrometric- pyramid composed of clay and glaze, made to melt and bend at specific temp, used in kiln to determine the end of firing or in some electric kilns

Question 11

Earthenware

Answer 11

a low fired clay body, glazed pottery is fired to a temp of 1,830-2,010 degrees

Question 12

Flux

Answer 12

melting agent causing silica to change into a glaze

Question 13

Feldspar

Answer 13

a range of aluminum silicate minerals used primarily in high-fire clay bodies and glazes, contributing fluxes including potassium, sodium, lithium, and/or calcium

Question 14

Glaze

Answer 14

thin coating of glass, and impervious silicate coating, which is developed in clay ware by the fusion under heat of inorganic materials