Honsen Magnetikna-ere magnetik neodymium ikike.Magnet neodymium (nke a makwaara dị ka NdFeB NIB ma ọ bụ Neo magnet) ụdị magnetik ụwa na-adịghị ahụkebe, bụ magnet na-adịgide adịgide nke sitere na alloy nke neodymium, iron na boron iji mepụta Nd2Fe14B tetragonal crystalline Ọdịdị.Mepụtara na 1982 site n'aka General Motors na Sumitomo Special Metals, ndọta neodymium bụ ụdị ndọta kachasị ike na-adịgide adịgide dị na azụmaahịa.Ha edochiela ụdị ndọta ndị ọzọ n'ọtụtụ ngwa dị na ngwaahịa ọgbara ọhụrụ nke chọrọ ndọta siri ike na-adịgide adịgide, dị ka moto na ngwaọrụ enweghị eriri, draịva diski ike na ihe ndọta.Amaghị ma Neodymium bụ ihe kacha mma maka ngwa gị?pịa ebe a maka njirimara na ntụnyere ngwa maka ihe ndọta niile anyị na-enye.
Neodymium okirikiri magnet na-adịgide adịgide Nkọwa
Ọdịdị kristal tetragonal Nd2Fe14B nwere nnukwu uniaxial magnetocrystalline anisotropy (HA ~ 7 teslas-magnetic field ike H na A / m vesos oge magnetik na A.m2).Nke a na-enye onyinye ahụ ikike inwe nnukwu mmanye (ya bụ, iguzogide ịbụ demagnetized).The compound nwekwara a elu saturation magnetization (Js ~ 1.6 T ma ọ bụ 16 kG) na a 1.3 teslas. Ya mere, dị ka kacha ike njupụta bụ proportionally ka js2, a magnetik na-adọ nwere ikike nke storinglarge ichekwa nke magnetik ike (BHmax ~ 512). kJ/m3 ma ọ bụ 64 MG·Oe) Ihe onwunwe a dị elu nke ukwuu na alloys NdFeB karịa na samarium cobalt (SmCo) magnetik, nke bụ ụdị mbụ magnetik ụwa na-adịghị ahụkebe ga-ere ahịa.Na omume, ihe ndọta nke neodymium magnetik na-adabere na ngwakọta alloy, microstructure, na usoro nrụpụta eji arụ ọrụ.n45 neodymium magnetik diski
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