Optimization of Hot-Press Sintering for Cu2+-Sn4+ Co-Doped YIG Ferrites: Microstructure, Dielectric Properties, and Magnetic Properties
Yttrium iron garnet (YIG), as a core material in microwave devices, remains a key focus in materials science for performance optimization. In this study, Y<sub>3</sub>Fe<sub>4.8</sub>Cu<sub>0.1</sub>Sn<sub>0.1</sub>O<sub>12</sub> samples were prepared via the solid-phase method with the co-doping of low-magnetic-anisotropy Cu<sup>2+</sup> and Sn<sup>4+</sup>, combined with hot-press sintering under different conditions. Systematic analyses revealed that hot-press sintering optimized the microstructure, reduced porosity, and improved the compactness to 5.60 g/cm<sup>3</sup>. The sample hot-pressed sintered at 1200 °C achieved a maximum <b><i>ε</i></b>' of 34, the lowest dielectric loss and a minimal FMR linewidth of 21 Oe, thus holding great potential for applications in high-frequency microwave devices requiring low loss and high integration. This work provides a viable approach to regulating the microstructure, dielectric properties, and magnetic properties of YIG ferrites.
Authors
- Xinrong Ren (ORCID: https://orcid.org/0000-0001-9974-1666)
- Hui Zheng (ORCID: https://orcid.org/0000-0002-5128-6606)
- Jia Gu
- Renhao Li (ORCID: https://orcid.org/0000-0003-2451-2142)
- Xin Meng (ORCID: https://orcid.org/0000-0003-3673-3102)
- Xiaoyuan Zhou (ORCID: https://orcid.org/0009-0002-7939-7292)
- Yanhui Wu (ORCID: https://orcid.org/0000-0003-4029-7585)
- Yuhan Sun (ORCID: https://orcid.org/0009-0003-7553-6862)
- Jiawen Wu (ORCID: https://orcid.org/0000-0002-9160-7304)
Institutions
- China Electronics Technology Group Corporation (CN)
- Hangzhou Dianzi University (CN)
Publication Details
- Journal
- Materials
- Published
- 2025-08-11
- DOI
- https://doi.org/10.3390/ma18163749
- Citations
- 1
- Primary Topic
- Magnetic Properties and Synthesis of Ferrites
- Type
- article
- Field-Weighted Citation Impact
- 0.52