c6.1.13 different materials Flashcards
1
Q
what is a ceramic
A
a hard, non-metallic material
they contain metals and non-metals combined to form giant ionic lattices or giant covalent structures
2
Q
examples of ceramic
A
glass
brick
china
porcelain
3
Q
typical properties of a ceramic
A
high melting point
hard and stiff
poor conductors of electricity and heat
4
Q
what is glass
A
made by melting sand
has an irregular giant structure without crystals
transparent
5
Q
other ceramics are made by…
A
heating clay to high temperatures
6
Q
choosing for an electrical cable
A
good conductor of electricity
lightweight
strong
resist corrosion
7
Q
choosing for insulators
A
poor conductors of electricity