Rare-earth metals
material · 1794 · Industrial Revolution
A group of elements for magnets, phosphors and catalysts.
Where it is used
- Neodymium magnet — is material for. Neodymium.
- Nickel–metal hydride battery — is material for. The anode is a rare-earth alloy.
- Smartphone — is material for. The magnets of the speakers and vibration motor are rare-earth.