He aha ka palena wela o ka samarium cobalt magnets?

Ua hoʻohana pinepine ʻia ka Samarium cobalt magnets (SmCo) ma ke ʻano he koho no nā kaiapuni koʻikoʻi no kona kūpaʻa kiʻekiʻe.Akā he aha ka palena wela o ka samarium cobalt?E lilo ana kēia nīnau i mea koʻikoʻi i ka piʻi ʻana o ka nui o nā kaiapuni noiʻi loa.ʻO ka mahana Curie o nā mea ferromagnetic ka mea maʻamau ka palena kiʻekiʻe o ka mahana noi.Ma luna o kēia mahana, hoʻololi ka magnet mai kahi ferromagnetic state i kahi paramagnetic state, a ʻaʻohe ona mau hiʻohiʻona ikaika.No ka laʻana, ʻo ka mahana Curie o 2:17 SmCo ma kahi o 820°C, a ʻo ka 1:5 SmCo ma kahi o 750°C.He ʻokoʻa mau ka haku mele ʻana a me ke ʻano o nā magnet, ʻokoʻa iki ka mahana o Curie, akā maʻamau i kēia pae.E like me ke Kii 1 i hoikeia.

Kiʻi 1. ʻO ka mahana Curie o nā mea magnet mau loa

Eia nō naʻe, i ka noi maoli, hiki i nā SmCo magnet ke hiki ke hoʻololi i ka nalowale i ka wā i haʻahaʻa loa ka mahana ma mua o ka mahana Curie.ʻO ka wela kiʻekiʻe (Tmax) o SmCo ua kaupalena ʻia e ka coefficient wela o ka coercivity a me ka wahi hana i hana ʻia e nā ʻano like ʻole o nā magnet.Inā hoʻohana ʻia ka pihi BH ma ka ʻaoʻao ʻelua ma ke ʻano he laina pololei e like me ke kūlana hoʻokolokolo (Chen, JAP, 2000), ʻaʻole ʻoi aku ka Tmax o nā mea hoʻohana maʻamau SmCo ma mua o 350°C.E like me ka mea i hōʻike ʻia ma ke Kiʻi 2, ʻo nā waiwai magnetic maikaʻi loa o 32H magnet ma 20 °C he Br≥11.3kGs, Hcj≥28kOe, Hk≥21kOe, a me BHmax≥30.5kOe.Eia nō naʻe, ʻo ka coefficient wela β (20-350 °C) o kona intrinsic coercivity Hcj ʻo 0.042%, a paʻakikī mau kāna pihi BH e mālama i kahi laina pololei loa ma ka quadrant lua ma 350 °C.

Helu 2, ka piko wela o 32H.

Ua hoʻomohala ʻo Hangzhou Magnet Power Co.Ltd i kahi moʻo kiʻekiʻe wela wela SmCo magnets (T series) mai 350 °C a 550 °C.E like me ka mea i hōʻike ʻia ma ke Kiʻi 3, ʻo kēia mau magnet mai ka T350 me kahi Tmax o 350 °C a i ka T550 me kahi Tmax o 550 °C.No ka hana kiko'ī, e nānā i ka loulou pūnaewelehttps://www.magnetpower-tech.com/t-series-sm2co17-smco-magnet-supplier-product/.Ua kūpono kēia mea no nā noi wela kiʻekiʻe e like me ka ʻoihana kemika, turbine a pēlā aku.