Ukusetyenziswa kwemathiriyeli yemagnethi ye-ferrite

Ukusetyenziswa kwemathiriyeli yemagnethi ye-ferrite

Imathiriyeli yemagnethi yeFerrite yi-ferromagnetic i-oxide yentsimbi. Ngokubhekiselele kwiipropati zombane, ukuxhathisa kwe-ferrite inkulu kakhulu kunaleyo yentsimbi kunye ne-alloy materials magnetic, kwaye inakho imisebenzi ephezulu ye-dielectric. Umsebenzi wamagnetic weferrite nawo ubonisa phezulu Ukungena kwemagnethi kumaza aphezulu. Ke ngoko, izinto zemagnethi ze-ferrite iye yaba yinto eqhelekileyo engeyiyo eyentsimbi yemagnethi kwi-frequency ephezulu kunye nobuthathaka umda wangoku. Ngenxa yamandla emagnethi aphantsi agcinwe ngokweyunithi umthamo we I-ferrite kunye ne-saturation ephantsi yemagnetization, ii-ferrites zilinganiselwe izicelo ezifuna uxinaniso lwamandla ombane aphezulu kumaza aphantsi naphezulu imiqobo yamandla.

Iimagnethi zeFerrite zenziwa ngumgubo isinyithi. Ubukhulu becala bohlulwe babe ziindidi ezimbini: iBarium (Ba) kunye nestrontium (Sr), kwaye zahlulwe zaba ziindidi ezimbini: i-anisotropic kunye ne-isotropic. Yi umazibuthe osisigxina ekungekho lula ukwenza imagnethi kwaye akukho lula ukurhwaphiliza. I izinto eziphathekayo, ngeqondo lobushushu eliphezulu ukusebenza 250 degrees Celsius, na iqinile kwaye inqatha. Inokunqunyulwa kwaye iqhutywe ngezixhobo ezifana isanti yedayimani, kwaye inokwakheka ngexesha elinye kunye ne-alloy processed mold. Iimveliso ezinjalo zisetyenziswa ngokubanzi kwiinjini zemagnethi ezisisigxina (Motor) kunye nezithethi (Isithethi) kunye nezinye iindawo. Isebenza ikakhulu kunxibelelwano, kusasazo, ukubala, ulawulo oluzenzekelayo, ukuhamba kwerada, ukuhamba kwesithuba, isathelayithi unxibelelwano, umlinganiselo wesixhobo, ushicilelo, unyango longcoliseko, i-biomedicine, ukuhamba ngesantya esiphezulu, njl.

IFerrite yeyodidi lwe i-semiconductors kwi-electronics, ngoko ikwabizwa ngokuba yi-semiconductors magnetic. I-Magnetite yi-ferrite elula.

1. Iiferi ezisisigxina ziquka i-barium ferrite (BaO.6Fe2O3) kunye ne-strontium ferrite (SrO.6Fe2O3). Ukumelana okuphezulu, ikwicandelo le-semiconductor, ke ukusetyenziswa kwe-eddy yangoku kuncinci, amandla okunyanzeliswa makhulu, anokusetyenziswa ngokufanelekileyo kwi-air gap magnetic circuit, eyodwa kwiijenereyitha ezincinci kunye neemagnethi ezisisigxina. Ayiqulathanga iintsimbi ezixabisekileyo ezifana ne-nickel kunye ne-cobalt. Imathiriyeli ekrwada igqwesileyo, i inkqubo ayinzima, kwaye ixabiso liphantsi. Ingathatha indawo yeAlNiCo ngokusisigxina umazibuthe. Imveliso yayo yamandla emagnetic echaseneyo ephezulu iphantsi, ngoko ke inkulu kune iimagnethi zentsimbi phantsi kweemeko zamandla kazibuthe. Ubushushu bayo uzinzo luhlwempuzekile, ukuthungwa kwayo ku-brittle kunye ne-brittle, kwaye ayikwazi ukumelana impembelelo kunye nokuziva. Ayifanelekanga izixhobo zokulinganisa kunye nezixhobo zemagnethi ngeemfuno ezingqongqo. Iimveliso zeferrite umazibuthe esisigxina ubukhulu becala uluhlu lwe-anisotropic. Zingasetyenziselwa ukwenza isiqalisi semagnethi esisigxina iimotor, iimotor umazibuthe osisigxina, iiconcentrators zemagnethi ezisisigxina, ezisisigxina ukuxhonywa kwemagnethi, iibheringi zemagnethi etyhalayo, izahluli zemagnethi ebanzi, izithethi, izixhobo ze-microwave, amaphepha onyango lwemagnethi, izixhobo zokuva, njl.

2. Soft magnetic ferrites include manganese ferrite (MnO.Fe2O3), zinc ferrite (ZnO.Fe2O3), nickel zinc ferrite (Ni-Zn.Fe2O4), manganese magnesium zinc ferrite (Mn- Mg-Zn.Fe2O4) and other single or multi-component ferrites. The resistivity is much larger than that of metallic magnetic materials, and it has a higher dielectric function. Thus, ferrites that have both ferromagnetic and ferroelectric properties as well as ferromagnetic and piezoelectric properties emerged. At high frequencies, its magnetic permeability is much higher than that of metallic magnetic materials, including nickel-iron alloys and sendust. It can be applied in the frequency range from a few kilohertz to hundreds of megahertz. The processing of ferrite belongs to the ordinary ceramic process, so the process is simple, and a lot of precious metals are saved, and the cost is low.

Uxinzelelo lwemagnethi lokuguquguquka kwe i-ferrite iphantsi kakhulu, idla ngokuba yi-1/3-1/5 kuphela yentsimbi. IFerrite inexabiso eliphantsi ugcino lwamandla kazibuthe ngokwenani leyunithi, ethintela ukusetyenziswa kwayo ezantsi iifrikhwensi, imisinga ephezulu, kunye nemida yebhendi yamandla aphezulu apho imagnethi iphezulu Uxinzelelo lwamandla luyafuneka. Kufanelekile ngakumbi kwi-frequency ephezulu, amandla aphantsi kunye nomhlaba obuthathaka wombane. I-nickel zinc ferrite ingasetyenziswa njenge-eriyali ipali kunye ne-intermediate frequency transformer core kusasazo lukanomathotholo, kunye i-manganese zinc ferrite ingasetyenziswa njengondoqo wokuhambisa umgca kwiTV umamkeli. Ukongeza, ii-ferrites ezithambileyo zisetyenziselwa ukongeza izinzwa kunye ne-cores filter kwimigca yonxibelelwano. Ii-transducer ezirekhodiweyo zemagnethi eziphakamileyo ziye zaba isetyenziswe iminyaka emininzi.