Concurrent Core Loss Suppression and High Permeability by Introduction of Highly Insulating Intergranular Magnetic Inclusions to MnZn Ferrite

Effect of a YIG nanoparticle additive on the magnetic properties of MnZn ferrites for MHz frequency applications

“…Therefore, YIG addition appears to minimally affect the grain size in this series of samples. This phenomenon is in agreement with the result reported by Andalib et al 15 The number and size of pores in the MnZn ferrites increase at high YIG contents of 600 and 800 ppm.…”

“…Compared to the results for the MnZn ferrite with no added YIG, the optimal MnZn ferrite sample containing with 600-ppm YIG exhibits a power loss reduction of 56.4% and 36.6% at 1 MHz/50 mT and 3 MHz/10 mT, 25 • C, respectively, and a 13.9% increase in μ i . In Andalib et al's works, 6,15 the addition of insulating magnetic YIG nanoparticles leads to a high reduction (76.9%) of P cv at 500 kHz/30 mT and a relatively low reduction (24.5%) of μ i . In this study, we extended the application of insulating magnetic additives to develop low-P cv MnZn ferrites for MHz frequency applications and found that the addition of YIG nanoparticles also remarkably reduced P cv at higher frequencies of 1 and 3 MHz and favorably increased μ i .…”

“…Therefore, the incorporation of these additives deteriorates the initial permeability ( μ i ), which is another important performance parameter for MnZn ferrites 12, 14 . Recently, Andalib et al 6, 15 . investigated the effect of the addition of magnetic and highly insulating YIG nanoparticles on the magnetic properties of MnZn ferrites.…”

“…12,13 Therefore, the incorporation of these additives deteriorates the initial permeability (μ i ), which is another important performance parameter for MnZn ferrites. 12,14 Recently, Andalib et al 6,15 investigated the effect of the addition of magnetic and highly insulating YIG nanoparticles on the magnetic properties of MnZn ferrites. The addition of YIG nanoparticles was found to lead to a high reduction (76.9%) of P cv at 500 kHz/30 mT and a relatively low reduction (24.5%) of μ i .…”

A review on MnZn ferrites: Synthesis, characterization and applications

“…In the class of soft ferrites, MnZn ferrites are preferred due to high permeability [122][123][124][125][126][127], saturation induction [128][129][130], low power losses [34,[131][132][133][134][135][136][137][138] and high magnetic induction [139,140]. MnZn ferrites are of great interest due to their wide range of applications such as hyperthermia applications [141], power applications [109][110][111], magnetic fluid [145], high frequency power supply, memory storage devices, TV sets, biomedicines [146], magnetic resonance, catalysis etc.…”