Kufotokozera Kwachidule:

(Aloyi wofewa wamaginito)

Ni77mo4cu5 ndi aloyi ya maginito ya nickel-iron, yokhala ndi nickel pafupifupi 80% ndi 20% ya chitsulo. Yopangidwa mu 1914 ndi katswiri wa sayansi ya zakuthambo Gustav Elmen ku Bell Telephone Laboratories, imadziwika ndi kupopera kwake kwakukulu kwa maginito, zomwe zimapangitsa kuti ikhale yothandiza ngati chinthu chachikulu cha maginito mu zida zamagetsi ndi zamagetsi, komanso mu chitetezo cha maginito kuti chilepheretse mphamvu zamaginito. Ma aloyi a permalloy amalonda nthawi zambiri amakhala ndi kupopera pafupifupi 100,000, poyerekeza ndi zikwi zingapo zachitsulo wamba.
Kuwonjezera pa kulola mphamvu zambiri, mphamvu zake zina zamaginito ndi kulola mphamvu zochepa, pafupifupi zero magnetostriction, komanso kukana mphamvu kwambiri kwa anisotropic magnetoresistance. Kuletsa mphamvu zochepa zamaginito ndikofunikira kwambiri pamafakitale, zomwe zimapangitsa kuti zigwiritsidwe ntchito m'mafilimu opyapyala pomwe kupsinjika kosiyanasiyana kungayambitse kusintha kwakukulu kwa mphamvu zamaginito. Kukana kwa magetsi kwa Permalloy kumatha kusintha mpaka 5% kutengera mphamvu ndi komwe mphamvu yamaginito imayikidwa. Permalloys nthawi zambiri amakhala ndi mawonekedwe a kristalo ya cubic pakati pa nkhope yokhala ndi lattice constant ya pafupifupi 0.355 nm pafupi ndi kuchuluka kwa nickel ya 80%. Choyipa cha permalloy ndikuti siigwira ntchito bwino kapena yogwira ntchito, kotero ntchito zomwe zimafuna mawonekedwe owoneka bwino, monga zishango zamaginito, zimapangidwa ndi ma alloys ena olola mphamvu zambiri monga mu metal. Permalloy imagwiritsidwa ntchito mu transformer laminations ndi mitu yojambulira maginito.
Ni77mo4cu5 imagwiritsidwa ntchito kwambiri m'makampani opanga ma wailesi ndi zamagetsi, zida zolondola, zowongolera kutali ndi makina owongolera okha.

Nambala ya Chitsanzo:Ni77mo4cu5

Mkhalidwe:Wowala

Kukana:0.55

Koyefifiti ya kukula kolunjika (20ºC ~ 200ºC) X10-6/ºC: 25

Kuchulukana (g/cm3):8.6

Curie point Tc/ºC:350

Chiyambi:China