Carbon
material
The element of organic matter; graphite, diamond, coal.
Inventor: Antoine Lavoisier.
Where it is used
- Carbon fibre — is material for. Carbon.
- Carbon microphone — is material for. Carbon granules.
- Resistor — is material for. Later — carbon.
- Microphone — is material for. A carbon microphone uses carbon granules.
- Hearing aid — is material for. The first hearing aids used a carbon microphone.
- Tyre tread — is material for. With carbon black for strength.
- Photocopier — is material for. Toner is carbon black in resin.
- Laser printer — is material for. Toner is carbon black in resin.
- Coke — is material for. Coke is almost pure carbon: everything else is baked out of the coal.
- Cast iron — is material for. Cast iron is iron with lots of carbon — hard but brittle.
- Hall–Héroult process — is used in. The electrodes for smelting aluminium are carbon — they slowly burn away.
- Graphene — is material for. Graphene is a layer of carbon one atom thick.
What it is a kind of
- Graphite — includes. A form of carbon.
- Diamond — includes. A form of carbon.
- Coal — includes. Mostly carbon.
- Activated carbon — includes. Porous carbon.