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passivation |
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passivation [‚pas·ə′vā·shən] (electronics) Growth of an oxide layer on the surface of a semiconductor to provide electrical stability by isolating the transistor surface from electrical and chemical conditions in the environment; this reduces reverse-current leakage, increases breakdown voltage, and raises power dissipation rating. (metallurgy) To render passive; to reduce the reactivity of a chemically active metal surface by electrochemical polarization or by immersion in a passivating solution. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The producers of galvanized steel can now passivate nearly all their galvanized product and reap the benefits of common inventories while reducing the potential for white rust corrosion. It incorporates Engelhard's unique MaxiMet(TM) technology to passivate metals, such as nickel and vanadium, even when processing highly contaminated resid feeds. CCA-500 passivates the areas most likely to produce coke, thereby extending the run length of the furnace. |
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