358°C
The Curie temperature is the specific temperature at which certain magnetic materials lose their permanent magnetic properties and become paramagnetic. For ferromagnetic materials like Nickel (Ni), this signifies a phase transition.
The widely recognized value for the Curie temperature ($T_C$) of Nickel metal is approximately 358°C.
This temperature is a fundamental property indicating the limit of Nickel's ferromagnetic behavior under increasing thermal energy.
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