Magnetic properties[edit]
Some important properties used to compare permanent magnets are:
remanence (Br), which measures the strength of the magnetic field
coercivity (Hci), the material's resistance to becoming demagnetized
energy product (BHmax), the density of magnetic energy
Curie temperature (TC), the temperature at which the material loses its magnetism
Neodymium magnets have higher remanence, much higher coercivity and energy product, but often lower Curie temperature than other types. Neodymium is alloyed with terbium and dysprosium in order to preserve its magnetic properties at high temperatures.[13] The table below compares the magnetic performance of neodymium magnets with other types of permanent magnets.
Magnetic properties[edit]Some important properties used to compare permanent magnets are:remanence (Br), which measures the strength of the magnetic fieldcoercivity (Hci), the material's resistance to becoming demagnetizedenergy product (BHmax), the density of magnetic energyCurie temperature (TC), the temperature at which the material loses its magnetismNeodymium magnets have higher remanence, much higher coercivity and energy product, but often lower Curie temperature than other types. Neodymium is alloyed with terbium and dysprosium in order to preserve its magnetic properties at high temperatures.[13] The table below compares the magnetic performance of neodymium magnets with other types of permanent magnets.
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