Ceramics 2 Flashcards
1
Q
What are ceramics made from?
A
Clay
2
Q
Clay
A
Malleable when moist, hardened by firing
3
Q
Types and properties of clay:
A
Earthenware - cheap, low firing temp, tiling
Stoneware - high quality, table wear
China - hard, makes porcelain
St Thomas - sculptures, can be spun on potters wheel
4
Q
How is clay used to make ceramics?
A
Shaping body clay on a potters wheel
5
Q
Body clay
A
Moist and unhardened
6
Q
What does firing do to clay?
A
Fuses the clay together and removes moisture (hardens)
7
Q
Glazing
A
Seals the surface to give an attractive finish. A coat is applied and then fired
8
Q
Non clay ceramics
A
Plaster of Paris - soft, sculptures
Concrete - made from cement, used for building structures
Glass - melted sand & minerals, Windows
9
Q
Properties of ceramics
A
Resist high temps
Good insulators
Don’t rust
