The temperature above which a magnetic material loses its magnetic properties and can be easily magnetised by an applied magnetic field.
Temperature above which there is no spontaneous magnetization.
The highest ambient temperature at which a thermal detector can operate. This is the point at which the detector material transitions (looses its Pyroelectric or Ferroelectric properties)
Temperature at which a magnet is totally demagnetized.
(after Pierre Curie) is that temperature at which magnetic materials undergo a sharp change in their magnetic properties. Remnant magnetism appears in rock below this temperature and is erased if the rock is heated above it.
The temperature at which the crystalline structure changes from a piezoelectric (non-symmetrical) to a non-piezoelectric (symmetrical) form. At this temperature Piezo ceramics looses the piezoelectric properties.
the temperature above which a ferromagnetic substance loses its ferromagnetism
The temperature of a magnetic material that renders it non-ferromagnetic. In other words, the permeability, or magnetic gain of a core can transition abruptly from a high value below the Curie temperature to almost non-existent above the Curie temperature. For ferrite materials it can be from 170° to 350° C depending on the ferrite grade and formulation.
The temperature at which a magnet loses all of its magnetic properties.
The temperature at which the parallel alignment of elementary magnetic moments completely disappears, and the materials is no longer able to hold magnetization.
Temperature at which the crystal structure undergoes a phase change from non-symmetrical lattice (such as tetragonal) to symmetrical lattice (such as cubic). Drastic dielectric and piezoelectric coefficient changes accompany this phase change.
that temperatue above which a ferromagnetic or ferrimagnetic material becomes paramagnetic.
Temperature at which a material loses its magnetic properties.
The transition temperature above which the alloy loses its magnetic properties. This is not the maximum serviceable temperature, which is usually much lower. The demagnetization curve is the second (or fourth) quadrant of a major hysteresis loop. Points on this curve are designated by the coordinates Bd and Hd.
The transition temperature above which a ferromagnetic material becomes diamagnetic.