The effects of Mn substitution on the crystalline phase structure, microstructure, DC resistivity, and magnetic-dielectric properties of Z-type hexaferrites

Huo, Xingyu; Su, Hua; Zhang, Qin; Huang, Fangyi; Wu, Xiaohui; Tang, Xiaoli; Li, Yuanxun; Jing, Yulan

doi:10.1016/j.jallcom.2022.167747

Cited by 8 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1. The ferrite particles consist of the main phase (Co 2 Z) and the second phase (Co 2 W), which is consistent with the results of the previous study [6]. For PDMS films, since they have the organic polymer chain structure, there are no obvious diffraction peaks like crystalline materials [7].…”

Section: Characterization Testsupporting

confidence: 91%

“…Co 2 Z hexaferrite has a high cut-off frequency and can maintain large permeability and permittivity over a wide frequency range [5]. Huo et al used Mn 2+ ions to substitute Co 2+ ions in Co 2 Z hexaferrite, obtained large permeability, high Snoek's constant, and low magnetic and dielectric losses [6]. In this work, PDMS film was chosen as the matrix in which different contents of Ba 1.5 Sr 1.5 Co 1.8 Mn 0.2 Fe 23 O 41 hexaferrite particles were dispersed and filled.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Huo,

Su,

Huang

2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

View full text Add to dashboard Cite

In this study, Ba 1.5 Sr 1.5 Co 1.8 Mn 0.2 Fe 23 O 41 ferrite particles were prepared by the solid-phase reaction method and dispersed in the PDMS matrix. The obtained composite films were systematically studied. The ferrite particles were dispersed uniformly in the PDMS matrix, except the sample at x = 2 g, which showed agglomeration. With the increase of filler content, the saturation magnetization of the composite films increases, and the permeability and permittivity also increase to different degrees. In particular, the dielectric loss is low (tan𝛿 < 0.005 at 500 MHz). The filling of Co 2 Z ferrite improves the high-frequency magneto-dielectric properties of PDMS, and the composite films have potential in flexible electronics.

show abstract

Section: Characterization Testsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Huo,

Su,

Huang

2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

View full text Add to dashboard Cite

show abstract

“…The uneven shape 097501-5 of grain and pore affects the magnetic loss and dielectric loss when x = 0.20. [26] Besides, the low real permeability and real permittivity are another factors influencing the magnetic and dielectric losses.…”

Section: Resultsmentioning

confidence: 99%

Tuning magneto-dielectric properties of Co₂Z ferrites via Gd doping for high-frequency applications

Lü

Zhang

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

In present study, magneto-dielectric properties of Co2Z ferrite materials are tuned via Gd doping for application in high-frequency antennas and filters. Ba3Co2Fe24-xGdxO41 (x = 0.00, 0.05, 0.10, 0.15, and 0.20) materials are successfully prepared using solid-state method at 925 ℃ for 4 h with 2.5wt% Bi2O3 sintering aids. Different contents of Gd3+ ion affect micromorphology, grain size, bulk density, and magneto-dielectric properties of the ferrite. Upon increasing Gd3+ ion content, saturation magnetization (M S) first increases and then decreases. The maximum value of M S is 44.86 emu/g, which is obtained at x = 0.15. Additionally, sites occupied by Gd3+ ions can change magnetic anisotropy constant of the ferrite. Magnetocrystalline anisotropy constants (K 1) are derived from initial magnetization curve, and it is found that K 1 is related to spin–orbit coupling and intersublattice interactions between metal ions. Real part of magnetic permeability (μ') and real part of dielectric permittivity (ε') are measured in frequency range of 10 MHz–1 GHz. When x = 0.15, materials have excellent magnetodielectric properties (μ' ≈ 12.2 and ε' ≈ 17.61) as well as low magnetic loss (tanδ μ ≈ 0.03 @500 MHz) and dielectric loss (tanδ ε ≈ 0.04 @500 MHz). Results show that Gd-doped Co2Z ferrite materials have broad application prospects for use in multilayer filters and high-frequency antennas.

show abstract

Fillers. Magnetodielectric

Wypych

2024

Encyclopedia of Polymer and Rubber Additives

View full text Add to dashboard Cite

The effects of Mn substitution on the crystalline phase structure, microstructure, DC resistivity, and magnetic-dielectric properties of Z-type hexaferrites

Cited by 8 publications

References 39 publications

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Tuning magneto-dielectric properties of Co₂Z ferrites via Gd doping for high-frequency applications

Fillers. Magnetodielectric

Contact Info

Product

Resources

About

The effects of Mn substitution on the crystalline phase structure, microstructure, DC resistivity, and magnetic-dielectric properties of Z-type hexaferrites

Cited by 8 publications

References 39 publications

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Design of Co2Z ferrite/PDMS composites with enhanced magnetic-dielectric properties for flexible electronics

Tuning magneto-dielectric properties of Co2Z ferrites via Gd doping for high-frequency applications

Fillers. Magnetodielectric

Contact Info

Product

Resources

About

Tuning magneto-dielectric properties of Co₂Z ferrites via Gd doping for high-frequency applications