Ingakanani izinga lokushisa elilinganiselwe lamazibuthe we-samarium cobalt?

Ozibuthe be-Samarium cobalt (SmCo) babevame ukusetshenziswa njengenketho yezindawo eziyingozi kakhulu ukumelana nezinga lokushisa eliphezulu. Kodwa liyini izinga lokushisa elilinganiselwe le-samarium cobalt? Lo mbuzo uba ngobaluleke kakhulu njengoba inani lezindawo zohlelo lokusebenza ngokwedlulele likhula. Izinga lokushisa le-Curie lezinto ze-ferromagnetic ngokuvamile liwumkhawulo ophezulu wezinga lokushisa lohlelo lokusebenza. Ngaphezu kwalokhu kushisa, uzibuthe uyashintsha ukusuka kusimo se-ferromagnetic ukuya esimweni se-paramagnetic, futhi akasenazo izici ezinamandla kazibuthe. Isibonelo, izinga lokushisa le-Curie elingu-2:17 SmCo licishe libe ngu-820°C, futhi lelo lika-1:5 SmCo licishe libe ngu-750°C. Ukwakheka nokwakheka kozibuthe kuhlale kuhlukile, izinga lokushisa le-Curie lihluke kancane, kodwa ngokuvamile likulolu hlu. Njengoba umdwebo 1 ubonisiwe.

Umfanekiso 1. Izinga lokushisa le-Curie lezinto ezihlukene zikazibuthe unomphela

Nokho, kuhlelo lokusebenza lwangempela, omagnethi be-SmCo bathambekele ekulahlekelweni kazibuthe okungenakulungiseka lapho izinga lokushisa liphansi kakhulu kunezinga lokushisa le-Curie. Izinga lokushisa eliphezulu (i-Tmax) le-SmCo likhawulelwe yi-coefficient yezinga lokushisa lokuphoqelela kanye nendawo yokusebenza ebangelwa ukuma okuhlukile kozibuthe. Uma ijika le-BH kuquadrant yesibili lisetshenziswa njengomugqa oqondile njengezinga lokwahlulela (Chen, JAP, 2000), i-Tmax yezibuthe ezisetshenziswa kakhulu ze-SmCo aweqi ku-350°C. Njengoba kuboniswe kuMfanekiso 2, izici ezinhle kakhulu zikazibuthe ze-32H uzibuthe ku-20 °C yi-Br≥11.3kGs, Hcj≥28kOe, Hk≥21kOe, kanye ne-BHmax≥30.5kOe. Kodwa-ke, izinga lokushisa elingu-β (20-350 °C) lokuphoqeka kwalo kwangaphakathi kwe-Hcj lingu-0.042%, futhi ijika layo le-BH kusenzima ukugcina umugqa oqondile ngokuphelele kuquadrant yesibili ku-350 °C.

Umfanekiso 2, ijika lokushisa elingu-32H.

I-Hangzhou Magnet Power Co.Ltd isungule uchungechunge lomazibuthe be-SmCo abangavimbeli izinga lokushisa eliphezulu (uchungechunge lwe-T) ukusuka ku-350 °C kuya ku-550 °C. Njengoba kuboniswe kuMfanekiso 3, lawa mamagnet asuka ku-T350 ene-Tmax engu-350 °C kuya ku-T550 ene-Tmax engu-550 °C. Ngokwenza okuthile, sicela ubheke isixhumanisi sewebhusayithihttps://www.magnetpower-tech.com/t-series-sm2co17-smco-magnet-supplier-product/.Le nto ifanele ukusetshenziswa kokushisa okuphezulu njengemboni yamakhemikhali, i-turbine nokunye.