passivatev.

Brit.

/ˈpasᵻveɪt/, U.S.

/ˈpæsəˌveɪt/

Origin: Formed within English, by derivation. Etymons: passive adj., -ate suffix³.

Etymology: < passive adj. + -ate suffix³, after activate v. Compare French passiver to render passive (1801). Compare slightly earlier passivation n., passivify v.

1. transitive. Metallurgy and Chemistry. To make (metal) unreactive or inert in order to inhibit corrosion, etc., esp. by altering the surface layer. Cf. passive adj. 9b.

ΘΚΠ

society > occupation and work > industry > working with specific materials > working with metal > work with metal [verb (transitive)] > protect metal with coating

enamelc1400

passivize1910

passivate1913

Parkerize1922

bonderize1938

Barff1951

metallide1967

1913 Chem. News 28 Nov. 259/1 We assume the passive state of metals (which can be passivated) to be the normal state.

1916 Jrnl. Chem. Soc. 109 1365 Hittorf has passivated chromium by anodic treatment in hydriodic acid.

1967 Times Rev. Industry Apr. 80/1 Unpainted non-stainless steel parts are cadmium plated and passivated for use at temperatures below 200 degrees centigrade.

1992 Soldier of Fortune Oct. 14/2 A heavy-duty 6-mil poly bag..that contains a VCI (Volatile Corrosion Inhibitor) which coats and passivates carbon and stainless steels.

2. transitive. Electronics. To coat (a semiconducting material) with relatively inert material in order to provide protection from contamination; to protect from contamination by such means.

ΘΚΠ

society > occupation and work > industry > working with specific materials > working with coating or covering materials > work with coating or covering materials [verb (transitive)] > coat with protective material

passivify1907

passivate1964

1964 IBM Jrnl. Res. & Devel. 8 368 (heading) Space-charge model for surface potential shifts in silicon passivated with thin insulating layers.

1972 G. V. Planer & L. S. Phillips Thick Film Circuits xi. 123 Active devices..are passivated with a layer of glass or silicon monoxide.

1998 Physical Rev. B. 58 7786 Hydrogen passivates Mg-doped GaN by the formation of electrically inactive dangling Mg-H complexes.

This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).

单词	passivate
释义	passivatev. Brit. /ˈpasᵻveɪt/, U.S. /ˈpæsəˌveɪt/ Origin: Formed within English, by derivation. Etymons: passive adj., -ate suffix³. Etymology: < passive adj. + -ate suffix³, after activate v. Compare French passiver to render passive (1801). Compare slightly earlier passivation n., passivify v. 1. transitive. Metallurgy and Chemistry. To make (metal) unreactive or inert in order to inhibit corrosion, etc., esp. by altering the surface layer. Cf. passive adj. 9b. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > work with metal [verb (transitive)] > protect metal with coating enamelc1400 passivize1910 passivate1913 Parkerize1922 bonderize1938 Barff1951 metallide1967 1913 Chem. News 28 Nov. 259/1 We assume the passive state of metals (which can be passivated) to be the normal state. 1916 Jrnl. Chem. Soc. 109 1365 Hittorf has passivated chromium by anodic treatment in hydriodic acid. 1967 Times Rev. Industry Apr. 80/1 Unpainted non-stainless steel parts are cadmium plated and passivated for use at temperatures below 200 degrees centigrade. 1992 Soldier of Fortune Oct. 14/2 A heavy-duty 6-mil poly bag..that contains a VCI (Volatile Corrosion Inhibitor) which coats and passivates carbon and stainless steels. 2. transitive. Electronics. To coat (a semiconducting material) with relatively inert material in order to provide protection from contamination; to protect from contamination by such means. ΘΚΠ society > occupation and work > industry > working with specific materials > working with coating or covering materials > work with coating or covering materials [verb (transitive)] > coat with protective material passivify1907 passivate1964 1964 IBM Jrnl. Res. & Devel. 8 368 (heading) Space-charge model for surface potential shifts in silicon passivated with thin insulating layers. 1972 G. V. Planer & L. S. Phillips Thick Film Circuits xi. 123 Active devices..are passivated with a layer of glass or silicon monoxide. 1998 Physical Rev. B. 58 7786 Hydrogen passivates Mg-doped GaN by the formation of electrically inactive dangling Mg-H complexes. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022). < v.1913
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