Stages of clay

Question 1

Alumina

Answer 1

gives clay it’s plasticity

Question 2

silica

Answer 2

allows clay to vitrify and become rock like

Question 3

water

Answer 3

holds particles in suspension

Question 4

iron

Answer 4

gives color, and acts as a flux

Question 5

grog

Answer 5

reduces plasticity and gives strength

Question 6

ball clay

Answer 6

increases plasticity

Question 7

what is a clay body?

Answer 7

particular mixture of clay

Question 8

how can you differ clay bodies?

Answer 8

color,texture,firing temp.,fragility,plasticity

Question 9

how much does clay shrink?

Answer 9

10-15% from plastic to mature stage which occurs after firing

Question 10

what are 7 stages of clay?

Answer 10

slip,slurry,plastic,leather hard, green ware, bisque, mature

Question 11

Slip characteristics and uses

Answer 11

used to add color decoration and slip casting. characteristic: can be poured

Question 12

slurry uses and characteristics

Answer 12

slurry is used as glue to stick two pieces of leather hard clay together. characteristics: cannot be poured, sticks to fingers

Question 13

plastic uses and characteristics

Answer 13

used for wheel work or hand building. characteristics: does not stick to fingers, can be manipulated like dough

Question 14

leather hard uses and characteristics

Answer 14

used for construction and relief. characteristics: cannot be manipulated like dough, can still have other clay attached to it

Question 15

green ware uses and characteristics

Answer 15

ready to be fired not to be worked on. characteristics: no longer attach other clay to it, will dissolve and turn to slip

Question 16

bisque uses and characteristics

Answer 16

used for applying glaze, planters and cooking pots. characteristics: will not dissolve in water, will let water pass through it

Question 17

mature uses and characteristics

Answer 17

unglazed mature clay used for bricks tiles or sculptures. characteristics: will not let water pass through

Question 18

why is it important to know clay stages?

Answer 18

so you know what processes you can do at each stage

Question 19

what are 6 ingredients in clay?

Answer 19

Alumina,silica,water,iron,grog,ball clay