Curie temperature


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Noun1.Curie temperature - the temperature above which a ferromagnetic substance loses its ferromagnetism and becomes paramagnetic
temperature - the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
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Curie temperature is the temperature in which magnetic nanoparticles lose their magnetic properties and their temperature does not increase.
Abolghasem Ataei, the project manager, said the most important issue in such treatment is to properly set the temperature known as Curie temperature where the nanoparticles lose their magnetism and their temperature will not increase.
It can be noticed that the pyrolysis reaction of oil shale is slow when the Curie temperature is below 386[degrees]C, and becomes intense above 423[degrees]C.
MATERIALS AND TYPES 63 TABLE 19-RARE EARTH MAGNET DESIGNATIONS 64 TABLE 20-NOMINAL COMPOSITION, CURIE TEMPERATURE AND MAGNETIC ORIENTATION OF COMMERCIAL RARE-EARTH COBALT MAGNETS 65 RARE-EARTH COBALT 5 65 RARE-EARTH 2 TRANSITION METAL 17 GROUP 66 MANUFACTURING PROCESSES 66 PROPERTIES 67 PHYSICAL AND MECHANICAL PROPERTIES 68 TABLE 21-NOMINAL PHYSICAL AND MECHANICAL PROPERTIES OF RE MAGNETS 68 MAGNETIC PROPERTIES 68 TABLE 22-NOMINAL MAGNETIC PROPERTIES OF RARE EARTH/COBALT MAGNETS 69 TABLE 23-MAGNETIC PROPERTIES OF SOME COMMERCIALLY AVAILABLE 70 RARE EARTH COBALT MAGNETS 70 APPLICATIONS 70
The morphology and performance of the material are related to the annealing temperature, time, and heating/ cooling rates [12, 20, 22, 29-31], For P(VDF-TrFE) copolymers, the annealing temperature between the Curie temperature ([T.
Unlike temporary magnets such as electromagnets, permanent magnets do not lose their magnetic property unless they are heated above their Curie temperature.
The Curie temperature is an important characteristic of a permanent magnet.
A magnetocaloric material exhibits a strong magnetocaloric effect near the Curie temperature, when the phase changes from paramagnetic to ferromagnetic.
When these objects are fired, the minerals in their clay are heated above the Curie temperature and are demagnetised.
Key words: PZT ceramics, resonance frequency, Curie temperature, coupling factor
The Curie temperature of a ferroelectric crystal has great importance as it is useful in studying various properties of the crystal.
As long as magnetized minerals aren't heated above a characteristic temperature known as a Curie temperature, the alignment of the magnetic materials contained therein remains intact.