@article{ART003278354},
author={Kweon, Soon-yong and Kang Young-Min},
title={Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2025},
volume={35},
number={4},
pages={152-159},
doi={10.6111/JKCGCT.2025.35.4.152}
TY - JOUR
AU - Kweon, Soon-yong
AU - Kang Young-Min
TI - Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2025
VL - 35
IS - 4
PB - The Korea Association Of Crystal Growth, Inc.
SP - 152
EP - 159
SN - 1225-1429
AB - Hexaferrites with nominal chemical formula of Sr2-yCayZn2-zCozFe28Ox (y = 0, 0.5; z = 0, 1, 2) were synthesized by a solid state reaction to investigate the phase evolution, magnetic behavior, and electromagnetic (EM) wave absorption properties. X ray diffraction revealed that the Sr2Co2Fe28Ox sample (y = 0, z = 2) calcined at 1300 °C formed a nearly single X type phase, whereas the Ca substituted samples (y = 0.5; z = 0, 1) exhibited dominant W type phases. The magnetic properties strongly depended on cation substitution and phase composition: the Sr1.5Ca0.5ZnCoFe28Ox sample (y = 0.5 and z = 1) showed the highest saturation magnetization (MS) of 75.7 emu/g and the lowest coercivity (HC) of 63 Oe. Microwave absorption analysis of epoxy (10 wt%) composites indicated excellent reflection loss (RL) performance with RLmin = –44.9 dB at 8.5 GHz (2.6 mm thickness) for Sr2Co2Fe28Ox and RLmin = –49.0 dB at 5.6 GHz (3.3 mm) for Sr1.5Ca0.5Zn2Fe28Ox. These results demonstrate that X and W type hexaferrite composites possess high permeability, and broadband EM wave absorption capabilities suitable for X band (8–12 GHz) absorber applications.
KW - Hexaferrites; Solid-state reaction; Magnetic properties; Permeability; Reflection loss; Electromagnetic wave absorption
DO - 10.6111/JKCGCT.2025.35.4.152
ER -
Kweon, Soon-yong and Kang Young-Min. (2025). Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites. Journal of the Korean Crystal Growth and Crystal Technology, 35(4), 152-159.
Kweon, Soon-yong and Kang Young-Min. 2025, "Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites", Journal of the Korean Crystal Growth and Crystal Technology, vol.35, no.4 pp.152-159. Available from: doi:10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong, Kang Young-Min "Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites" Journal of the Korean Crystal Growth and Crystal Technology 35.4 pp.152-159 (2025) : 152.
Kweon, Soon-yong, Kang Young-Min. Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites. 2025; 35(4), 152-159. Available from: doi:10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong and Kang Young-Min. "Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites" Journal of the Korean Crystal Growth and Crystal Technology 35, no.4 (2025) : 152-159.doi: 10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong; Kang Young-Min. Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites. Journal of the Korean Crystal Growth and Crystal Technology, 35(4), 152-159. doi: 10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong; Kang Young-Min. Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites. Journal of the Korean Crystal Growth and Crystal Technology. 2025; 35(4) 152-159. doi: 10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong, Kang Young-Min. Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites. 2025; 35(4), 152-159. Available from: doi:10.6111/JKCGCT.2025.35.4.152
Kweon, Soon-yong and Kang Young-Min. "Broadband microwave absorption of Sr-Ca-Zn-Co substituted X- and W-type hexaferrite composites" Journal of the Korean Crystal Growth and Crystal Technology 35, no.4 (2025) : 152-159.doi: 10.6111/JKCGCT.2025.35.4.152
