Ceramics

Front 1

Wedging

Back 1

A method of kneading clay to make it homogenous by cutting and rolling

Front 2

Vitrification

Back 2

the firing of pottery to the point of glossification

Front 3

Stoneware

Back 3

Firing range: Cone 5-11 fire to cone 10

2381 degrees F

Front 4

Dry-foot

Back 4

to keep the foot or bottom of a pot free from glaze by waxing or removing glaze

Front 5

Earthenware

Back 5

a low fired clay body. glazed pottery is fired to a temp of 1830- 2010 degrees F. Available in red and white

Front 6

Engobe

Back 6

Colored clay slip used to decorate greenware or leather hard pieces before bisque firing. Clay, oxide, and water

Front 7

Essential properties of clay

Back 7

plasticity, porosity, vitrification

Front 8

Fire (verb)

Back 8

to heat a clay object in a kiln to a specific temp

Front 9

Firing Range

Back 9

the range of temp at which a clay becomes mature or a glaze melts

Front 10

Flux

Back 10

a melting agent causing silica to change into a glaze

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Foot

Back 11

base of a ceramic form

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glaze

Back 12

a thin coating of glass. an impervious silicate coating which is developed in clay ware by fusion under heat of inorganic materials

Front 13

glaze firing

Back 13

the final firing, with glaze

Front 14

greenware

Back 14

unfired pottery, ready to be bisque fired

Front 15

heat/work theory

Back 15

to achieve an event/reaction, material is heated to a specific temp at a specific rate/time. Pyrometric cones have a number that corresponds to heating rate/temp combo

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kiln

Back 16

a furnace of refractory clay bricks for firing pottery and for fusing glass

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leather hard

Back 17

stage of the clay between plastic and bone dry. clay is still damp enough to join it to other pieces using slip.

Front 18

maturing point

Back 18

the temp at which the clay becomes hard and durable

Front 19

pinch

Back 19

manipulate clay with your fingers in your palm to hollow shape. pinch pots are a popular beginner project

Front 20

plasticity

Back 20

the quality of clay which allows it to be manipulated into different shapes without cracking or breaking

Front 21

porcelain

Back 21

white stoneware, made from clay prepared from feldspar, china clay, flint and whiting

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porosity

Back 22

the porous quality of the clay body is determined by the size of aggregate or size of pore in the clay mixture

Front 23

rib

Back 23

a rubber, metal, or wooden tool used to facilitate wheel throwing of pottery forms

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slab

Back 24

pressed or rolled flat sections of clay used in hand building

Front 25

slip

Back 25

clay mixed with water with a mayonnaise consistency. used in casting and decoration

Front 26

soaking

Back 26

maintaining a low steady heat in the early stages of firing to achieve a uniform temp through the kiln

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stacking

Back 27

load a kiln to hold the max number of pieces

Front 28

stoneware

Back 28

all ceramic wear fired between 2100 and 2300 degrees

Front 29

chuck

Back 29

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

Front 30

clay

Back 30

alumina, silica, and water

Front 31

clay body

Back 31

a mixture of different types of clays and minerals for a specific ceramic purpose. (porcelain)

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coil

Back 32

a piece of clay rolled like a rope

Front 33

composite pot

Back 33

pots that were thrown or hand built in separate pieces and then assembled

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cone

Back 34

pyrometric - a pyramid composed of clay and glaze, made to melt and bend at specific temp. it is used in a kiln to determine the end of a firing or in some electric kilns it shuts off a kiln setting

Front 35

banding wheel

Back 35

a revolving wheel head which sits on a pedestal base. turned by hand

Front 36

bisque

Back 36

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

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bisque fire

Back 37

first firing, without glaze

Front 38

bone dry

Back 38

completely air dried