Permalloy


Permalloy
/perrm'al"oy, perr"meuh loy'/, Trademark.
a brand name for any of a class of alloys of high magnetic permeability, containing from 30 to 90 percent nickel.
[1920-25; PERM(ANENT) + ALLOY]

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      trademark of the Western Electric Company for nickel-iron alloys having much higher magnetic permeability than iron alone. It is widely used for fabricating the thin pieces that are laminated to form transformer cores. The proportion of nickel may range from 35 to 90 percent, depending on the properties desired, and is about 78 percent for low-power transformers. Hipernik (trademark of the Westinghouse Electric Company) is an alloy of 50 percent nickel useful for high-power transformers. Heating Permalloy containing 5 percent molybdenum in pure hydrogen yields Supermalloy, with even higher permeability.

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Universalium. 2010.

Look at other dictionaries:

  • Permalloy — is the term for a nickel iron magnetic alloy. Generically, it refers to an alloy with about 20% iron and 80% nickel content. Permalloy has a high magnetic permeability, low coercivity, near zero magnetostriction, and significant anisotropic… …   Wikipedia

  • Permalloy — Saltar a navegación, búsqueda Permalloy es una marca comercial que designa a una aleación magnética compuesta por níquel y acero. Fue descubierto en 1914 por Gustav Elmen de los Laboratorios Bell, quien demostró que la permeabilidad magnética… …   Wikipedia Español

  • permalloy — PERMALLÓY s.n. Aliaj de fier şi nichel folosit la confecţionarea de miezuri magnetice pentru aparate de măsură, la amplificatoare magnetice etc. – Din fr. permalloy, germ. Permalloy. Trimis de oprocopiuc, 12.03.2004. Sursa: DEX 98  PERMALLÓY s.n …   Dicționar Român

  • permalloy — [ pɛrmalɔj; pɛrmalwa ] n. m. • 1925; mot angl., de perm(eable) et alloy « alliage » ♦ Techn. Alliage de fer et de nickel (à 78 % de nickel) d une très grande perméabilité magnétique. permalloy [pɛʀmalɔj; pɛʀmalwa] n. m. ÉTYM. 1925, in Höfler; en… …   Encyclopédie Universelle

  • permalloy — ☆ permalloy [pʉrm΄al′oi, pʉr′mə loi΄ ] n. [ PERM(EABILITY) + ALLOY] any of a series of alloys of iron and nickel with high magnetic permeability: used in magnetic cores, for wrapping underwater cables, etc …   English World dictionary

  • Permalloy — Le permalloy est un alliage magnétique de fer et de nickel, découvert en 1914 par Gustav Elmen des Laboratoires Bell. Il contient généralement 15 % de fer et 80 % de nickel ; sa désignation symbolique selon la norme européenne est… …   Wikipédia en Français

  • Permalloy — Per|mal|loy 〈a. [ loạ] n.; s; unz.〉 aus Nickel u. Eisen bestehende Legierung mit sehr guten magnet. Eigenschaften * * * Permalloy®   [ pəːməlɔɪ, Kurzwort] das, s, weichmagnetische Nickel Eisen Legierung mit etwa 75 80 % Nickel, 15 % Eisen und… …   Universal-Lexikon

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