Definition of passivate in English:


Line breaks: pas¦siv|ate
Pronunciation: /ˈpasɪveɪt


[with object] (usually as adjective passivated)
  • 1Make (a metal or other substance) unreactive by altering the surface layer or coating the surface with a thin inert layer: components are made from passivated and anodized aluminium the process both cleans and passivates stainless steel
    More example sentences
    • The surface of the chips was passivated by an ONO layer, which allowed multiple reuses of the chip.
    • The new technology is based on a water dispersion of the organic metal, which passivates the copper and provides catalytic sites for the chemical deposition of pure tin, which is the final surface.
    • We fractured the tips flat with inner diameters of 6-8 m with a microforge (Stoelting, Wood Dale, IL) and then coated the tips with SurfaSil to passivate the surface.
  • 1.1 Electronics Coat (a semiconductor) with inert material to protect it from contamination.
    More example sentences
    • Batteries and other onboard energy sources can be similarly passivated, although this is not quite so simple and adds more cost.
    • These transistors replace the traditional doped silicon junctions with passivated metal-silicon interfaces.
    • They will passivate the surface of zinc and zinc alloy electrodeposits with a thin film that provides end-user benefits such as color, abrasion resistance and increased corrosion protection.



Pronunciation: /-ˈveɪʃ(ə)n/
More example sentences
  • For the applicator, hexavalent chromium passivations are easy to use and can be bulk applied often by a single-stage immersion and are inexpensive to make-up and operate.
  • According to one report, General Motors will prohibit the use of hexavalent chromium passivations on its products beginning in 2002.
  • Totally non-chromium passivations have been under development for some time, and there exists a number of alternatives.

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