Development of high-efficiency tri-layer microwave absorbing materials based on SrMeFe11O19 hexaferrite

Thanh, Tran Dang; Tran, Ngo; Viet Chinh, Nguyen Thi; Ha Giang, Tran Thi; Manh, Do Hung; Tuan, Nguyen Quy

doi:10.1016/j.jallcom.2023.172421

Cited by 9 publications

(1 citation statement)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, as the frequency increases to 12−18 GHz, both ε′ and ε″ demonstrate numerous resonance peaks. These peaks, which are caused by interface polarization and intrinsic dipole polarization, 21,22 indicate that the BaM nanoplates exhibit strong microwave absorption within the corresponding frequency bands. The absorption peaks are strong, suggesting a high intensity of the dielectric loss.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

M-Type Ba-Hexaferrite Nanoplates with Exceptional Microwave Absorption Properties

Xu,

Liao,

Zhou

et al. 2024

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Barium hexaferrite BaFe 12 O 19 (BaM) nanoplates have been synthesized by using a combined sol−gel technique and molten salt method through high-temperature calcination. The components, morphology, and magnetic and microwave absorption properties of BaM were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), and vector network analysis (VNA). The experimental results indicate that the obtained nanoplates exhibit the smallest average grain size and the highest saturation magnetization strength at the calcination temperature with 950 °C. Meanwhile, the electromagnetic adsorption parameters show that the obtained nanoplates reach the maximum reflection loss value of −56.79 dB at 1.74 mm and the maximum effective absorption bandwidth of 4.01 GHz at 2.5 mm. The dielectric and magnetic loss tangent curves demonstrate that the mechanism of dielectric loss is mainly dominated by the nano intrinsic effect of these nanoplates. The remarkable microwave absorption property of the BaM nanoplates demonstrates their significant potential for application in advanced microwave absorption devices.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%