Fa'amatalaga Puupuu:

(Soi maneta vaivai)

Ni77mo4cu5 o se nickel-uʻamea mageta alloy, e tusa ma le 80% nickel ma 20% uʻamea mea.Fausia i le 1914 e le physicist Gustav Elmen i Bell Telephone Laboratories, e iloga ona o lona maualuga tele o le maneta, lea e aoga ai e avea o se mea faʻamaneta i mea eletise ma mea faʻaeletoroni, faʻapea foʻi ma le talipupuni mageta e poloka ai maneta.u'amea permalloy fa'apisinisi e masani ona i ai le fa'aogaina o le 100,000, fa'atusatusa i le tele o afe mo u'amea masani.
I le faaopoopo atu i le maualuga maualuga, o isi mea maneta e maualalo le coercivity, latalata i le zero magnetostriction, ma le taua o le anisotropic magnetoresistance.O le maualalo o le magnetostriction e taua tele mo mea tau alamanuia, e mafai ai ona fa'aoga i ata manifinifi lea e mafai ai ona fa'atupuina le fa'alavelave fa'aletonu i se suiga tele i mea maneta.Ole malosi ole eletise ole Permalloy e mafai ona fesuisuiai pe a ma le 5% e fuafua ile malosi ma le itu ole fa'aogaina ole maneta.Permalloys e masani lava ona i ai foliga fa'aogatotonuina fausaga tioata kupita ma se lattice tumau e tusa ma le 0.355 nm i le va o se nickel concentration o le 80%.O se fa'aletonu o le permalloy e le matua'i ma'ale'ale pe fa'aogaina, o lea la o talosaga e mana'omia ai foliga fa'apitoa, e pei o talita fa'amaneta, e faia i isi u'amea maualuga maualuga e pei o le mu metal.Permalloy e faʻaaogaina i laminations transformer ma ulu faʻamaumau maneta.
Ni77mo4cu5 fa'aaogaina lautele i le leitio-eletise alamanuia, meafaifaaili sa'o, fa'atonu mamao ma le fa'aogaina otometi.

Fa'ata'ita'iga Nu.:Ni77mo4cu5

Tulaga:Malamalama

Resistivity:0.55

Coefficient o le fa'alauteleina laina(20ºC~200ºC)X10-6/ºC : 25

Malosi (g/cm3):8.6

Curie point Tc/ºC:350

amataga:Saina