Why isn’t liquid iron still magnetic? Why can’t we have liquid magnets?
In: Physics
You may want to read about Curie points, its the temperature at which materials loose their magnetism. This is lower than materials melting point. You can make a permanent magnet non magnetic by heating the.
This can be used in practical applications, such as rice cookers! When the water is evaporated, heat goes above the boiling point and a material with a Curie point just above boiling becomes nok magnetic, making a permanent magnet no longer stick to it and a spring separates the two, and cuts the connection to the heating element.
Technology connections have an excellent video to it.
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