PERIGO, E.A.FARIA, R.N.2020-12-092020-12-092020PERIGO, E.A.; FARIA, R.N. Temperature dependence of irreversible flux loss field in sintered ferrite magnets: a connection with chemical composition and physical properties. <b>IEEE Magnetics Letters</b>, v. 11, 2020. DOI: <a href="https://dx.doi.org/10.1109/LMAG.2020.3028842">10.1109/LMAG.2020.3028842</a>. Disponível em: http://200.136.52.105/handle/123456789/31610.1949-307Xhttp://200.136.52.105/handle/123456789/31610This letter discusses the temperature dependence of the magnetic field at which irreversible magnetic flux loss of ferrite sintered magnets is initiated. In this material class such a field might reduce linearly: comparable behavior to that observed for Nd-Fe-B-based sintered counterparts increases linearly or even peaks for temperatures above 350 K. These differences are attributed to variations in the saturation polarization and magnetocrystalline anisotropy constant(s) of the hard-magnetic phase arising from changes in the chemical composition. A comparison between HK and HD5, where the latter is defined in an IEC standard, is also presented and discussed.closedAccessmicrostructureferritesmagnetic materialshardnesscoercive forcemagnetic propertiestemperature dependenceArtigo de periódico1110.1109/LMAG.2020.302884225.6242.00