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I have a question a question about AlNiCo that maybe someone here can answer...
AlNiCo is both a permanent magnet with a coercivity value, as well as a permeable material with a permeability value. So it seems that it has some magnetic domains that are stuck in a particular direction, and must be "coerced" with a strong magnetic fields, around 640 oersted according to Wikipedia, and also has much loose magnetic domains that much more easily re-orient in the presence of even a weak magnetic field, hence the permeability, which I see can be anywhere from 3 to 6 µ0.
Do I have a correct understanding as to how AlNiCo is able to both firmly hold a magnetic charge, as well as react to the presence of other magnetic fields around it at the same time? Is it that it has some magnetic domains that behave like a permanent magnet, and some magnetic domains that behave like a ferromagnetic?
AlNiCo is both a permanent magnet with a coercivity value, as well as a permeable material with a permeability value. So it seems that it has some magnetic domains that are stuck in a particular direction, and must be "coerced" with a strong magnetic fields, around 640 oersted according to Wikipedia, and also has much loose magnetic domains that much more easily re-orient in the presence of even a weak magnetic field, hence the permeability, which I see can be anywhere from 3 to 6 µ0.
Do I have a correct understanding as to how AlNiCo is able to both firmly hold a magnetic charge, as well as react to the presence of other magnetic fields around it at the same time? Is it that it has some magnetic domains that behave like a permanent magnet, and some magnetic domains that behave like a ferromagnetic?