> > "There is a wearout mechanism in metal called electromigration. The failure > typically relates to high current (electrons) moving metal atoms resulting > in > voids (missing metal atoms or a hole in the metal line). This failure > typically > appears close to the contact area and not in the middle of a wire." > If you read the next answer down on Quora, he points out that electromigration is an issue in integrated circuits, where current density may be 100,000 amperes per cm^2 -- not in a car wire with density of less than one ampere per cm^2. Yrs, d |
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