Mayelana Nozibuthe

Ayini ama-Neodymium Magnets

Ozibuthe be-Neodymium (isifinyezo: Ozibuthe be-NdFeb) bangamazibuthe abaqine kakhulu abatholakala ngokuthengiswa, yonke indawo emhlabeni. Banikeza amazinga angenakuqhathaniswa kazibuthe kanye nokumelana ne-demagnetization uma kuqhathaniswa nozibuthe beFerrite, Alnico ngisho neSamarium-cobalt.
Ozibuthe be-Neodymium bahlelwa ngokomkhiqizo wabo omkhulu wamandla, ohlobene nokuphumayo kazibuthe ngevolumu yeyunithi ngayinye. Amanani aphezulu akhombisa ozibuthe abanamandla. Komazibuthe be-NdFeB, kukhona ukuhlukaniswa okuqashelwa kabanzi emhlabeni jikelele. Amanani awo asukela ku-28 kuye ku-55. Uhlamvu lokuqala N ngaphambi kwamanani lufushane lwe-neodymium, okusho ukuthi omazibuthe be-NdFeB abahlanganisiwe.
Ozibuthe be-Neodymium bane-remanence ephakeme, ukuphoqelela okuphakeme kakhulu nomkhiqizo wamandla, kodwa ngokuvamile behlisa izinga lokushisa le-Curie kunezinye izinhlobo zozibuthe. Ama-alloys azibuthe we-neodymium akhethekile afaka i-terbium kanye
I-dysprosium iye yathuthukiswa enezinga lokushisa eliphakeme le-Curie, elibavumela ukuba babekezelele amazinga okushisa aphezulu.Ithebula elingezansi liqhathanisa ukusebenza kazibuthe kozibuthe be-neodymium nezinye izinhlobo zikazibuthe unomphela.

Basetshenziselwa ini izibuthe ze-neodymium? Ngenxa yamagnethi we-neodymium aqine kakhulu, ukusetshenziswa kwawo kubanzi kakhulu. Zenzelwe izidingo zehhovisi, ezentengiselwano nezimboni, ezisetshenziswa ezinhlotsheni zama-wind turbines,
izipikha, ama-earphone namamotho, ama-microphone, izinzwa, ukunakekelwa kwezokwelapha, ukupakisha, okokusebenza kwezemidlalo, izinkundla zezandla nezokundiza.

Ayini ama-Ferrite Magnets

Ama-Ferrite Magnets ngaphandle kozibuthe be-ferrite abaqinile kanye nozibuthe abathambile.
Ama-ferrite aqinile anokucindezela okuphezulu, ngakho kunzima ukuwakhipha. Asetshenziselwa ukwenza omazibuthe abangapheli bezinhlelo zokusebenza ezifana nesiqandisi, izikhulisa-zwi, namamotho amancane kagesi nokunye.

Ama-ferrite athambile anokucindezela okuphansi, ngakho-ke ashintsha kalula uzibuthe futhi asebenze njengamakhondatha wezinkundla kazibuthe. Asetshenziswa embonini ye-elekthronikhi ukwenza ama-cores kazibuthe asebenzayo abizwa ngokuthi ama-ferrite cores ama-high-frequency inductors, ama-transformer nama-antenna, nasezintweni ezihlukahlukene ze-microwave.

Izinhlanganisela ze-Ferrite ziyizindleko eziphansi kakhulu, zenziwe nge-iron oxide ikakhulukazi, futhi zinokumelana nokugqwala okuhle kakhulu.
Ayini Ama-Alnico Magnets
Ozibuthe be-Alnico bangozibuthe abangapheli abenziwe ngokuyinhloko ngenhlanganisela ye-aluminium, nickel ne-cobalt kodwa bangahlanganisa nethusi, insimbi ne-titanium.
Ziza nge-isotropic, non-directional, noma i-anisotropic, i-mono-directional, ifomu. Uma sezinozibuthe, zinamandla aphindwe ka-5 kuya kweziyi-17 kumandla kazibuthe we-magnetite noma i-lodestone, okuyizinto zikazibuthe ezenzeka ngokwemvelo eziheha insimbi.
Ozibuthe be-Alnico bane-coefficient yezinga lokushisa eliphansi futhi bangalinganiswa ukungeniswa kwensalela ephezulu ukuze basetshenziswe ezinhlelweni zokushisa okuphezulu okufika ku-930°F noma ku-500°C. Zisetshenziswa lapho ukumelana nokugqwala kudingekile kanye nezinhlobo ezahlukene zezinzwa.

Iyini i-Samarium-cobalt Magnet (SmCo Magnet)

Uzibuthe we-samarium–cobalt (SmCo), uhlobo lukazibuthe ovela emhlabeni oyivelakancane, uwuzibuthe oqinile ongunaphakade owenziwe ngezinto ezimbili eziyisisekelo: Ozibuthe be-Samarium ne-cobalt. Ozibuthe be-Samarium–cobalt ngokuvamile babalwa ngokufana ngamandla kuzibuthe ze-neodymium, kodwa banezinga lokushisa eliphakeme. izilinganiso kanye nokuphoqelela okuphezulu.
Ezinye izici ze-SmCo yilezi:
Ozibuthe baseSamarium-cobalt amelana kakhulu ne-demagnetization.
Lawa mazibuthe anokuqina okuhle kwezinga lokushisa (ukushisa okuphezulu kokusetshenziswa phakathi kuka-250 °C (523 K) no-550 °C (823 K); amazinga okushisa eCurie asuka ku-700 °C (973 K) kuya ku-800 °C (1,070 K).
Ayabiza futhi angaphansi kokuguquguquka kwentengo (i-cobalt izwela intengo yemakethe).
Ozibuthe be-SmCo banokumelana okuqinile nokugqwala kanye nokumelana ne-oxidation, ngokuvamile abadingi ukumbozwa futhi bangasetshenziswa kabanzi ekushiseni okuphezulu nezimo ezimbi zokusebenza. Ziqinile, futhi zijwayele ukuqhekeka nokuqhekeka. Ozibuthe be-Samarium–cobalt banemikhiqizo yamandla ephezulu (BHmax) esukela ku-14 megagauss-oersteds (MG·Oe) ukuya ku-33 MG·Oe, okusho ukuthi cishe. 112 kJ/m3 kuya ku-264 kJ/m3; umkhawulo wabo wasetiyetha 34 MG·Oe, mayelana 272 kJ/m3.
Okunye ukusetshenziswa kuhlanganisa:
1. Izinjini zikagesi ezisezingeni eliphezulu ezisetshenziswa emakilasini aqhudelana kakhulu ku-slotcar racingTurbomachinery.
2. Ozibuthe basensimini ye-tube wave-wave.
3. Izinhlelo zokusebenza ezizodinga ukuthi isistimu isebenze emazingeni okushisa e-cryogenic noma amazinga okushisa ashisayo kakhulu (ngaphezu kuka-180 °C).
4. Izinhlelo zokusebenza lapho ukusebenza kudingeke khona ukuze kuhambisane nokushintsha kwezinga lokushisa.
5. Ama-spectrometer e-Benchtop NMR.
6. Izifaki khodi ezijikelezayo lapho zenza khona umsebenzi we-actuator kazibuthe.