Across
- 2. destruction by chemical reactions with substances in the environment.
- 5. made by heating wet clay.
- 7. element essential for stainless steel.
- 8. polymers that do not melt when heated.
- 9. protection that uses a more reactive metal.
Down
- 1. can be made from sand.
- 2. indicates the purity of gold alloys.
- 3. protects aluminium from corrosion.
- 4. An alloy of copper and tin.
- 6. made of a matrix or binder and a reinforcement.