BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties
In order to meet the demand for high-frequency current sensors in 5G communication and new energy fields, there is an urgent need to develop high-performance nickel-zinc ferrite-based co-fired ceramic magnetic cores. In this study, a nickel-zinc ferrite core based on low temperature co-fired ceramic...
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2025-04-01
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| author | Shao-Pu Jiang Chang-Lai Yuan Wei Liu Lin Li Huan Li Jing-Tai Zhao |
| author_facet | Shao-Pu Jiang Chang-Lai Yuan Wei Liu Lin Li Huan Li Jing-Tai Zhao |
| author_sort | Shao-Pu Jiang |
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| description | In order to meet the demand for high-frequency current sensors in 5G communication and new energy fields, there is an urgent need to develop high-performance nickel-zinc ferrite-based co-fired ceramic magnetic cores. In this study, a nickel-zinc ferrite core based on low temperature co-fired ceramic (LTCC) technology was developed. The regulation mechanism of BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> doping on the low-temperature sintering characteristics of NiZn ferrites was systematically investigated. The results show that the introduction of BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> reduces the sintering temperature to 900 °C and significantly improves the density and grain uniformity of ceramics. When the doping amount is 0.75 wt%, the sample exhibits the lowest coercivity of 35.61 Oe and the following optimal soft magnetic properties: initial permeability of 73.74 (at a frequency of 1 MHz) and quality factor of 19.64 (at a frequency of 1 MHz). The highest saturation magnetization reaches 66.07 emu/g at 1 wt% doping. The results show that BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> doping can regulate the grain boundary liquid phase distribution and modulate the magnetocrystalline anisotropy, which provides an experimental basis and optimization strategy for the application of LTCC technology in high-frequency current sensors. |
| format | Article |
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| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-04-01 |
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| spelling | doaj-art-a498a0076ff84ba58b427ebfe3a0a1502025-08-20T02:58:44ZengMDPI AGSensors1424-82202025-04-01259273110.3390/s25092731BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic PropertiesShao-Pu Jiang0Chang-Lai Yuan1Wei Liu2Lin Li3Huan Li4Jing-Tai Zhao5Guangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaGuangxi Key Laboratory of Information Material, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaIn order to meet the demand for high-frequency current sensors in 5G communication and new energy fields, there is an urgent need to develop high-performance nickel-zinc ferrite-based co-fired ceramic magnetic cores. In this study, a nickel-zinc ferrite core based on low temperature co-fired ceramic (LTCC) technology was developed. The regulation mechanism of BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> doping on the low-temperature sintering characteristics of NiZn ferrites was systematically investigated. The results show that the introduction of BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> reduces the sintering temperature to 900 °C and significantly improves the density and grain uniformity of ceramics. When the doping amount is 0.75 wt%, the sample exhibits the lowest coercivity of 35.61 Oe and the following optimal soft magnetic properties: initial permeability of 73.74 (at a frequency of 1 MHz) and quality factor of 19.64 (at a frequency of 1 MHz). The highest saturation magnetization reaches 66.07 emu/g at 1 wt% doping. The results show that BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub> doping can regulate the grain boundary liquid phase distribution and modulate the magnetocrystalline anisotropy, which provides an experimental basis and optimization strategy for the application of LTCC technology in high-frequency current sensors.https://www.mdpi.com/1424-8220/25/9/2731NiZn ferritescurrent sensormagnetic propertiesLTCC technology |
| spellingShingle | Shao-Pu Jiang Chang-Lai Yuan Wei Liu Lin Li Huan Li Jing-Tai Zhao BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties Sensors NiZn ferrites current sensor magnetic properties LTCC technology |
| title | BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties |
| title_full | BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties |
| title_fullStr | BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties |
| title_full_unstemmed | BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties |
| title_short | BaCo<sub>0.06</sub>Bi<sub>0.94</sub>O<sub>3</sub>-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties |
| title_sort | baco sub 0 06 sub bi sub 0 94 sub o sub 3 sub doped nizn ferrites for high frequency low loss current sensors ltcc sintering and magnetic properties |
| topic | NiZn ferrites current sensor magnetic properties LTCC technology |
| url | https://www.mdpi.com/1424-8220/25/9/2731 |
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