Cov hlau sib xyaw M yog tswj hwm los ntawm cov cations divalent, thiab Fe304, qhov twg M=Fe, yog xim dub thiab yog cov khoom siv zoo.
npe magnetite. Lwm cov tebchaw muaj nyob qhov twg cov hlau sib xyaw M yog 1, 3, lossis txawm tias tetravalent cations, hu ua ferrite.Cov txheej txheem kev tsim khoom yog nias hmoov ferrite thiab ci rau qhov kub thiab txias. nws kuj yog hom ceramic. Nws tuaj yeem tsim los ntawm cov hlau oxide Fe204 thiab yog li pheej yig.Cov yam ntxwv ntawm cov hlau nplaum ferrite yog tias lawv tuaj yeem tsim tau yooj yim rau hauv ib qho duab thiab yooj yim rau txheej txheem thiab lawv muaj kev ruaj khov thiab tiv taus corrosion los ntawm xeb thiab tshuaj.
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