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<p>In this study, ZnO–Al<sub>2</sub>O<sub>3</sub>–B<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> (ZABS) glass–ceramics were successfully prepared using water-quenching followed by solid-state sintering. The effects of B<sub>2</sub>O<sub>3</sub> contents on the crystallization behavior, sintering characteristics, microstructure, and dielectric properties of glass–ceramics were investigated by differential scanning calorimeter (DSC), Fourier transform infrared spectrometer (FTIR), X-ray diffractometer (XRD), scanning electron microscope (SEM) and network analyzer. The results showed that increasing the B<sub>2</sub>O<sub>3</sub> contents consumes the free oxygen provided by Zn<sup>2+</sup> ions in the glass network, converting [BO<sub>3</sub>] into [BO<sub>4</sub>] units and enhancing the glass network stability. Simultaneously, the presence of [BO<sub>3</sub>] units reduces the glass softening point and crystallization activation energy. The dielectric performance of ZABS glass–ceramics depends on the degree of densification and crystallization. Among them, excellent dielectric properties with <i>ε</i><sub><i>r</i></sub> = 5.36 and <i>Q</i> × <i>f</i> = 32,200&#xa0;GHz were obtained for the samples containing 12&#xa0;mol% B<sub>2</sub>O<sub>3</sub> sintered at 875&#xa0;°C/2&#xa0;h. This suggests potential applications for the ZABS glass–ceramic in the low-temperature co-fired ceramic (LTCC) field.</p>

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Structure and microwave dielectric properties of ZABS glass–ceramics with different B2O3 content

  • 期刊论文

  • 发表日期：

    2026年2月3日

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  • Weicheng Lei,
  • Jinyang Cai,
  • Changzhi Yin,
  • Xiaoqiang Song,
  • Congao Jin,
  • Jiaqing Yang,
  • Yiyang Cai,
  • Mingfei Cheng,
  • Xiaoxiao Li,
  • Wenzhong Lu,
  • Wen Lei

摘要

In this study, ZnO–Al2O3–B2O3–SiO2 (ZABS) glass–ceramics were successfully prepared using water-quenching followed by solid-state sintering. The effects of B2O3 contents on the crystallization behavior, sintering characteristics, microstructure, and dielectric properties of glass–ceramics were investigated by differential scanning calorimeter (DSC), Fourier transform infrared spectrometer (FTIR), X-ray diffractometer (XRD), scanning electron microscope (SEM) and network analyzer. The results showed that increasing the B2O3 contents consumes the free oxygen provided by Zn2+ ions in the glass network, converting [BO3] into [BO4] units and enhancing the glass network stability. Simultaneously, the presence of [BO3] units reduces the glass softening point and crystallization activation energy. The dielectric performance of ZABS glass–ceramics depends on the degree of densification and crystallization. Among them, excellent dielectric properties with εr = 5.36 and Q × f = 32,200 GHz were obtained for the samples containing 12 mol% B2O3 sintered at 875 °C/2 h. This suggests potential applications for the ZABS glass–ceramic in the low-temperature co-fired ceramic (LTCC) field.