Magnet ya Neodymium, yomwe imadziwikanso kuti maginito asomwe a padziko lapansi

Maginito a Neodymium, omwe amadziwikanso kuti maginito osowa padziko lapansi, akhala ofunika kwambiri m'madera ambiri amakono amakono chifukwa cha mphamvu zake zamatsenga.Maginitowa amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza zamagetsi, zida zamankhwala, zakuthambo, ndi mphamvu zongowonjezwdwa.Posachedwapa, gulu la asayansi ochokera ku yunivesite ya Tokyo latulukira zinthu zomwe zingathe kusintha kwambiri ntchito ya maginito a neodymium.

Mu kafukufuku wofalitsidwa mu nyuzipepala ya Nature , ofufuzawo adanena kuti adapanga bwino maginito a neodymium okhala ndi mphamvu zambiri kuposa maginito onse a neodymium omwe adanena kale.Kukakamiza ndi muyeso wa kuthekera kwa maginito kukana demagnetization, ndipo kukakamiza kwakukulu ndikofunikira kuti zida zambiri zizigwira ntchito mokhazikika, kuphatikiza ma mota amagetsi ndi ma jenereta.

Kuti akwaniritse izi, gululi linagwiritsa ntchito njira yotchedwa spark plasma sintering, yomwe imaphatikizapo kutentha ndi kuziziritsa mofulumira kwa ufa wosakaniza wa neodymium ndi iron boron.Njirayi imathandizira kugwirizanitsa maginito muzinthu, zomwe zimawonjezera mphamvu ya maginito.

Maginito atsopano opangidwa ndi ochita kafukufuku anali ndi coercivity ya 5.5 tesla, yomwe ili pafupifupi 20% kuposa momwe adalembera kale.Kuwongolera kwakukulu kumeneku pakukakamiza kumatha kukhala ndi ntchito zambiri zothandiza pamagalimoto amagetsi, omwe amagwiritsidwa ntchito m'mafakitale ambiri, kuphatikiza magalimoto ndi ndege.

Ofufuzawo adanenanso kuti maginito atsopano amapangidwa pogwiritsa ntchito njira yosavuta komanso yowonongeka, yomwe ingapangitse kuti zikhale zosavuta komanso zotsika mtengo kupanga maginito a neodymium apamwamba kwambiri m'tsogolomu.Izi zitha kupangitsa kuti pakhale ma mota ndi ma jenereta odalirika komanso odalirika, zomwe zingakhudze kwambiri mafakitale ambiri ndipo zitha kuthandizira kukula kwa mphamvu zongowonjezwdwa.

Pomaliza, kafukufuku waposachedwa wa neodymium maginito kafukufuku ndi University of Tokyo ndi chitukuko chachikulu chomwe chingakhale ndi tanthauzo lalikulu kumadera ambiri a zamakono zamakono.Kutha kupanga maginito a neodymium apamwamba kwambiri pogwiritsa ntchito njira yosavuta komanso yowongoka kumatha kusintha makina amagetsi amagetsi ndi ma jenereta ndikuthandizira kukula kwa mphamvu zongowonjezwdwa.