Heat generation properties in AC magnetic field for composite powder material of the Y3Fe5O12–nSiC system prepared by reverse coprecipitation method

Hiromichi Aono,Hideyuki Hirazawa,Tsunehiro Maehara,Yoshiteru Itagaki,Yuhi Yamano,Takashi Naohara

doi:10.1007/s40145-016-0198-9

Hiromichi Aono, Hideyuki Hirazawa + Show 4 more

Open Access

https://doi.org/10.1007/s40145-016-0198-9

Copy DOI

Abstract

Abstract Composite powder material of the Y3Fe5O12–nSiC system was synthesized by a reverse coprecipitation method to study its heat generation property in an AC magnetic field. For Y3Fe5O12 (n = 0), the maximum heat generation ability of 0.45 W·g−1 in an AC magnetic field (370 kHz, 1.77 kA·m−1) was obtained for the sample calcined at 1100 °C. The SiC addition helped to suppress the particle growth for Y3Fe5O12 at the calcination temperature. The heat generation ability was improved by the addition of the SiC powder, and the maximum value of 0.93 W·g−1 was obtained for the n = 0.3 sample calcined at 1250 °C. The heat generation ability and the hysteresis loss value were proportional to the cube of the magnetic field (H 3). The heat generation ability (W·g−1) of the Y3Fe5O12–0.3SiC sample calcined at 1250 °C could be expressed by the equation 4.5×10−4 · f · H 3 using the frequency f (kHz) and the magnetic field H (kA·m−1).

Highlights

The heat generation ability in an AC magnetic field for magnetic materials has been studied for the local treatment of cancerous tissues [1,2,3,4,5,6,7]
In the case of (a) n = 0, the main cubic Y3Fe5O12 phase with a low intensity of the orthorhombic YFeO3 phase was detected for the sample calcined at 1100 °C
The formation of the silicates and peak shift for the Y3Fe5O12 were not detected for the n = 1.0 sample calcined at a high temperature

Summary

Introduction

The heat generation ability in an AC magnetic field for magnetic materials has been studied for the local treatment of cancerous tissues [1,2,3,4,5,6,7]. J Adv Ceram 2016, 5(3): 262–268 generation ability in an AC magnetic field was obtained for the ferrimagnetic Y3Fe5O12 powder material prepared by a reverse coprecipitation method [23]. The heat generation for the ferrimagnetic materials is due to the hysteresis loss for the B–H magnetic property In this Y3Fe5O12, the maximum heat generation ability in the AC magnetic field was obtained by calcination at 1100 °C for the sample having a ca. The SiC powder was selected for the second phase and the ferrimagnetic Y3Fe5O12–nSiC system prepared by the reverse coprecipitation method was investigated for its heat generation ability in an AC magnetic field

Experimental

Results and discussion

Conclusions