1. Microstructure and magnetic properties of low-temperature sintered M-type hexaferrite BaZn0.6Sn0.6Fe10.8O19 for LTCC process.
- Author
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Liu, Qian, Wu, Chongsheng, Wang, Yu, You, Xin, Li, Jie, Liu, Yingli, and Zhang, Huaiwu
- Subjects
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FERRITES synthesis , *BARIUM ferrite synthesis , *RIETVELD refinement , *SINTERING , *MAGNETIZATION , *MAGNETIC anisotropy , *X-ray diffraction - Abstract
Highlights • M-type hexaferrite BaZn 0.6 Sn 0.6 Fe 10.8 O 19 was synthesized at a low sintering temperature of 900 °C. • Rietveld refinement were adapted to make investigated parameters more standard. • This M-type hexaferrite is potential candidate for the design of microwave devices such as circulator operated at Ku band. Abstract M-type barium hexaferrite (BaM) of composition BaZn 0.6 Sn 0.6 Fe 10.8 O 19 was successfully synthesized through a ceramic process. Sintering aids Bi 2 O 3 ·B 2 O 3 ·SiO 2 ·ZnO (BBSZ) were added to lower the sintering temperature. The formation of pure M phase for samples sintered at 900 °C with sufficient BBSZ was confirmed from XRD patterns analysis. Large saturation magnetization (69.02 emu/g) and relatively low magnetic anisotropy field (7.4 kOe) were obtained simultaneously when sample was synthesized with 2.5 wt% BBSZ dosage. These properties make the material suitable for applications in LTCC process. The ferromagnetic resonance (FMR) linewidth (Δ H) decreased efficiently by 719 Oe owing to the sintering aids. This M-type hexaferrite is also potential candidate for the design of microwave devices such as circulators and isolators operated at low frequencies. Meanwhile, the influences of sintering aids upon the microstructure, complex permeability and magnetic properties of M-type hexaferrite BaZn 0.6 Sn 0.6 Fe 10.8 O 19 were investigated. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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