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  2. Galvanic corrosion - Wikipedia

    en.wikipedia.org/wiki/Galvanic_corrosion

    These layers of corrosion can be largely removed through the electrochemical reduction of silver sulfide molecules: the presence of aluminium (which is less noble than either silver or copper) in the bath of sodium bicarbonate strips the sulfur atoms off the silver sulfide and transfers them onto and thereby corrodes the piece of aluminium foil ...

  3. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Flared connectors should not be confused with compression connectors, which are generally not interchangeable. Lacking a compression ring, they use a tapered conical shaped connection instead. A specialized flaring tool is used to enlarge tubing into a 45º tapered bell shape matching the projecting shape of the flare fitting.

  4. Copper conductor - Wikipedia

    en.wikipedia.org/wiki/Copper_conductor

    The wire provides connections that will not corrode or creep. It is not, however, compatible with aluminium wire or connectors. If the two metals are joined, a galvanic reaction can occur. Anodic corrosion during the reaction can disintegrate the aluminium. This is why most appliance and electrical equipment manufacturers use copper lead wires ...

  5. Fretting - Wikipedia

    en.wikipedia.org/wiki/Fretting

    A connector design that contacts all 4-sides of a square pin instead of just one or 1 or 2 can delay the inevitable fretting some amount. Keeping contacts clean and lubricated also offers some longevity. Contact fretting can change the impedance of a B2B connector from milliohms to ohms in just minutes when vibration is present. The relatively ...

  6. Contact resistance - Wikipedia

    en.wikipedia.org/wiki/Contact_resistance

    When a conductor has spatial dimensions close to /, where is Fermi wavevector of the conducting material, Ohm's law does not hold anymore. These small devices are called quantum point contacts . Their conductance must be an integer multiple of the value 2 e 2 / h {\displaystyle 2e^{2}/h} , where e {\displaystyle e} is the elementary charge and ...

  7. Lead (electronics) - Wikipedia

    en.wikipedia.org/wiki/Lead_(electronics)

    The lead wire is a coated copper wire, a tinned copper wire or another electrically conductive wire used to connect two locations electrically. In electronics, a lead (/ ˈ l iː d /) or pin is an electrical connector consisting of a length of wire or a metal pad (surface-mount technology) that is designed to connect two locations electrically.

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  9. Copper interconnects - Wikipedia

    en.wikipedia.org/wiki/Copper_interconnects

    Since copper is a better conductor than aluminium, ICs using copper for their interconnects can have interconnects with narrower dimensions, and use less energy to pass electricity through them. Together, these effects lead to ICs with better performance. They were first introduced by IBM, with assistance from Motorola, in 1997. [1]

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