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by mmf 2573 days ago
“Eutectic alloys are also notable because they often have the lowest melting point”. Isn’t the very definition of eutectic the mix proportion that has _the lowest_ melting point?
1 comments

Not precisely. It’s the lowest _local_ melting point on the composition-temperature phase diagram. One material pairing can have multiple eutetic points.

Also, the fact that everything melts at the same temperature isn’t particularly important -it’s easy to add more heat. It’s really that everything freezes at the same temperature.