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  2. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more negative reduction potential / more positive oxidation potential ) than the metal of the structure.

  3. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Aluminum sacrificial anodes (light colored rectangular bars) mounted on a steel jacket structure. Zinc sacrificial anode (rounded object) screwed to the underside of the hull of a small boat. Cathodic protection (CP; / k æ ˈ θ ɒ d ɪ k / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an ...

  4. Sacrificial metal - Wikipedia

    en.wikipedia.org/wiki/Sacrificial_metal

    The capacity of a sacrificial metal may be calculated from first principle as follows: 1 kg Al = 1000/27 moles Al; 1 kg Al = 3 x 1000/27 moles of electrons; 1 kg Al = 3 x 1000/27 x 96494 coulombs of charge (by Faraday principles) = 10.72 x 10 6 Amp.seconds of charge per Kg Al (1 Coulomb = 1 Amp.Second) = 10.72 x 10 6 /3600 = 2978 Amp.Hours per Kg

  5. Galvanic corrosion - Wikipedia

    en.wikipedia.org/wiki/Galvanic_corrosion

    Sacrificial anodes to protect a boat. The compatibility of two different metals may be predicted by consideration of their anodic index. This parameter is a measure of the electrochemical voltage that will be developed between the metal and gold. To find the relative voltage of a pair of metals it is only required to subtract their anodic ...

  6. Anode - Wikipedia

    en.wikipedia.org/wiki/Anode

    The terms anode and cathode are not defined by the voltage polarity of electrodes, but are usually defined by the direction of current through the electrode. An anode usually is the electrode of a device through which conventional current (positive charge) flows into the device from an external circuit, while a cathode usually is the electrode through which conventional current flows out of ...

  7. US Supreme Court declines to let RFK Jr drop off ballot in ...

    www.aol.com/news/us-supreme-court-declines-let...

    (Reuters) -The U.S. Supreme Court denied on Tuesday a bid by former independent presidential candidate Robert F. Kennedy Jr., who has endorsed Republican Donald Trump, to be removed from the ...

  8. Man, 20, Found Dead at Bottom of Elevator Shaft During First ...

    www.aol.com/man-20-found-dead-bottom-160430887.html

    The family of a 20-year-old man is speaking out after he was found dead at the bottom of a hotel elevator shaft in Turkey while reportedly on his first vacation with his girlfriend.

  9. Electrogalvanization - Wikipedia

    en.wikipedia.org/wiki/Electrogalvanization

    Zinc acts as a sacrificial anode for protecting the iron (steel). While steel is close to E SCE = -400 mV (the potential refers to the standard Saturated calomel electrode (SCE), depending on the alloy composition, electroplated zinc is much more anodic with E SCE = -980 mV.