TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

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Users of permanent magnets know of the very high magnetic coercivity exhibited by certain rare earth-iron alloys, most commonly neodymium-iron-boron... but also including such other rare earth elements as dysprosium for higher anisotropy... Very similar alloys have been developed which excel in related magnetic properties. Take for example, the alloy with terbium and dysprosium commonly known as Terfenol-D... which exhibits a very high magnetostriction; this alloy is said to have "Giant" Magnetostriction.  2, fiche 1, Anglais, - Terfenol%2DD

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... a miniature actuator ... utilizes a Terfenol-D rod; only the end of the rod is visible, attached to a metal dome for actuation. The length of the rod changes as current is applied to the coil surrounding it. The housing acts as part of the magnetic circuit, which also includes a conventional permanent magnet for biasing (not visible). Thus, actuation is provided only by the changing length of the rod, although some mechanical amplification (e.g.: using a lever arm) may be advantageous.  2, fiche 1, Anglais, - Terfenol%2DD

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Magnetostrictive material, such as these Terfenol-D rods that are several centimeters long, changes its length in a magnetic field. Originally developed for military sonar, the alloy is finding use in actuators, vibration controllers and sensors.  3, fiche 1, Anglais, - Terfenol%2DD

Fiche 1,  Justifications,  Français

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Le Terfenol-D, alliage de métaux de faible résistance électrique, développe des courants de Foucault lorsque la fréquence de vibration augmente, d'où des pertes. [...] Autre inconvénient du Terfenol-D : son coût élevé, obstacle qui pourrait être surmonté grâce à des alliages à base de terres rares moins chères.  1, fiche 1, Français, - Terfenol%2DD

Fiche 1,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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Rare earth magnets include Sm-Co (Samarium-Cobalt) magnets and Nd-Fe-B (Neodymium-Iron-Boron) magnets. ... rare earth permanent magnets have many distinguishing characteristics, such as a large Maximum Energy Product, (one performance index for permanent magnets). Dozens of magnetic materials which contain rare earth have been developed recently. Two major families of rare earth permanent magnets, Sm-Co magnets and Nd-Fe-B magnets, have been widely used in a variety of applications. Each family has its own advantages and disadvantages.  2, fiche 3, Anglais, - rare%2Dearth%20magnet

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Permanent Magnet Materials. Permanent magnets are used in the following major groups: acoustic transducers, motors and generators, magneto mechanical devices, and magnetic field and imaging systems. You will find permanent magnets in many products, such as televisions, telephones, computers, audio systems and automobiles. The permanent magnet family consists, in general terms, of non-rare earth permanent magnets and rare earth magnets.  2, fiche 3, Anglais, - rare%2Dearth%20magnet

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Rare Earths : A family of elements with an atomic number from 57 to 71 plus 21 and 39. They are lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, and yttrium.  3, fiche 3, Anglais, - rare%2Dearth%20magnet

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Récemment, l'apparition sur le marché d'aimants permanents à base de terres rares (Sm-Co ou Fe-Nd-B) a permis la réalisation de nouveaux séparateurs à haute intensité. Ces derniers se substituent dans beaucoup de cas aux appareils traditionnels du fait de leurs coûts d'investissement et de fonctionnement nettement inférieurs.  1, fiche 3, Français, - aimant%20permanent%20%C3%A0%20base%20de%20terres%20rares

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

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The non-rare earth magnets include Alnico (Aluminum-Nickel-Cobalt) magnets and Ceramic (Strontium and Barium Ferrite) magnets. Rare earth magnets include Sm-Co (Samarium-Cobalt) magnets and Nd-Fe-B (Neodymium-Iron-Boron) magnets. ... rare earth permanent magnets have many distinguishing characteristics, such as a large Maximum Energy Product, (one performance index for permanent magnets). Dozens of magnetic materials which contain rare earth have been developed recently. Two major families of rare earth permanent magnets, Sm-Co magnets and Nd-Fe-B magnets, have been widely used in a variety of applications. Each family has its own advantages and disadvantages.  2, fiche 4, Anglais, - non%20rare%2Dearth%20magnet

Record number: 4, Textual support number: 1 OBS

Rare Earths : A family of elements with an atomic number from 57 to 71 plus 21 and 39. They are lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, and yttrium.  3, fiche 4, Anglais, - non%20rare%2Dearth%20magnet

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As opposed to "rare-earth magnet."  4, fiche 4, Anglais, - non%20rare%2Dearth%20magnet

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol