TY - JOUR
T1 - A comparative study of structural, magnetic and X-band microwave absorption characteristics of pure and Zn–Zr co-doped M-type barium hexaferrites samples
AU - Sharda, Garima
AU - Verma, Swati
AU - Singh, Anupinder
AU - Kaur, Paramjeet
AU - Kaur, Pawandeep
AU - Sharma, Sandeep
AU - Malhi, Parambir Singh
AU - Godara, Sachin Kumar
AU - Singh, Surinder
AU - Singh, Satvir
AU - Ahmed, Jahangeer
AU - Alhokbany, Norah
AU - Kandwal, Abhishek
AU - Singh, Mandeep
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.
PY - 2025/5
Y1 - 2025/5
N2 - Rietveld refinement has been used to analyse phase evolution in BaFe10ZnZrO19 (BZFO) and BaFe12O19 (BFO) samples calcined between 900 °C and 1200 °C. Refinement revealed that BZFO consist of five segregated phases viz. Zn-Zr doped BFO, ZnFe2O4, ZrO2, BaZrO3 and BaFeO3 at 1100 °C and 1150 °C. In contrast, BFO samples consist only of BFO and Fe2O3 phases. Both types of samples become phase pure at 1200 °C. FESEM micrographs reveal pronounced secondary grain growth in BZFO samples and reduction in grain size (0.32–0.19 µm) with dopant incorporation at 1200 °C. EDX mapping confirmed the even spatial distribution of various elements in both type of samples. VSM data reveals that BFO (Hc = 4536 Oe and Ms = 51.56 emu/g) samples exhibit superior magnetic characteristics as compared to BZFO (Hc = 728 Oe and Ms = 47.86 emu/g) samples at 1200 °C. The BFO and BZFO samples respectively show minimum RLdB values of -35.3 dB (at 8.8 GHz) and -36.6 dB (at 9.5 GHz), at 1200 °C calcination. The data suggests an enhancement in microwave absorption capacity with a) dopant incorporation and b) increase in calcination temperature.
AB - Rietveld refinement has been used to analyse phase evolution in BaFe10ZnZrO19 (BZFO) and BaFe12O19 (BFO) samples calcined between 900 °C and 1200 °C. Refinement revealed that BZFO consist of five segregated phases viz. Zn-Zr doped BFO, ZnFe2O4, ZrO2, BaZrO3 and BaFeO3 at 1100 °C and 1150 °C. In contrast, BFO samples consist only of BFO and Fe2O3 phases. Both types of samples become phase pure at 1200 °C. FESEM micrographs reveal pronounced secondary grain growth in BZFO samples and reduction in grain size (0.32–0.19 µm) with dopant incorporation at 1200 °C. EDX mapping confirmed the even spatial distribution of various elements in both type of samples. VSM data reveals that BFO (Hc = 4536 Oe and Ms = 51.56 emu/g) samples exhibit superior magnetic characteristics as compared to BZFO (Hc = 728 Oe and Ms = 47.86 emu/g) samples at 1200 °C. The BFO and BZFO samples respectively show minimum RLdB values of -35.3 dB (at 8.8 GHz) and -36.6 dB (at 9.5 GHz), at 1200 °C calcination. The data suggests an enhancement in microwave absorption capacity with a) dopant incorporation and b) increase in calcination temperature.
UR - http://www.scopus.com/inward/record.url?scp=105006934725&partnerID=8YFLogxK
U2 - 10.1007/s10854-025-14986-7
DO - 10.1007/s10854-025-14986-7
M3 - Article
AN - SCOPUS:105006934725
SN - 0957-4522
VL - 36
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 15
M1 - 919
ER -