Heat generation mechanism in AC magnetic field of yttrium iron garnet Y₃Fe₅O₁₂ powder synthesized by a reverse coprecipitation method

Abstract

We synthesized the Y₃Fe₅O₁₂ powder using a reverse coprecipitation method. The maximum heat generation ability was obtained for the sample calcined at 1100^oC. Heat generation ability of the Y₃Fe₅O₁₂ is proportional to the cube of the strength of magnetic field. The hysteresis loss value for the B-H curve agreed with the heat generation ability for the sample calcined at lower than 1100^oC.