Definition of "passivation" in Anglais

noun

1. (chemistry, materials science) The process of making a material passive (non-reactive) in relation to another material prior to using the materials together.

2. (chemistry) The spontaneous formation of a hard non-reactive surface film (usually an oxide or nitride) that inhibits further corrosion.

3. (control theory) Conversion of a non-passive dynamical system into a passive one.