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3 answers

Magnetism relies upon temperature.
Remember there are different types of magnetism -: ferromagnetic (iron etc), diamagnetic and paramagnetic.

Ferro Magneitsm is the strongest, but it can be eliminated completely when heated. As it is heated it gradually loses it's magnetism - and then at something called the Curie Point (after Madam Curie and her husband) - magnetism stops altogether, this is because the 'domains' within the structure are no longer aligned with each other.

If the metal is then cooled, it will regain it's original magnetic properties.

As for your original question, a magnet will still be attracted to a magnetic metarial which has turned molted - in fact certain manufacturing processes use what is called FSZM (Free Stand Zone Melt) which is simply a material manufacturd from molten material actually being formed whilst being suspended in mid-air by magnets as it is made (have a look at magnetostrictive materials such as Terfenol-D and Iron-Gallium.)

2007-02-08 23:20:36 · answer #1 · answered by Doctor Q 6 · 0 0

Magnetism occurs in ferrous metals (iron content), heat causes the magnetic field to flucuate in field strength due to the excited movement of atoms. But the magnetic properties still remain.

2007-02-08 23:18:27 · answer #2 · answered by Anonymous · 0 0

no it isnt, this is because the alignment of the molecule is lost, magnatism is caused by the number atoms inside the object all lign up in the same direction, as it is melted the bonds break and the magnatism is lost

2007-02-08 23:15:53 · answer #3 · answered by Nick H 2 · 0 0

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