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首页> 外文期刊>RSC Advances >Microwave dielectric properties of low-temperature-fired MgNb(2)O(6)ceramics for LTCC applications
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Microwave dielectric properties of low-temperature-fired MgNb(2)O(6)ceramics for LTCC applications

机译：用于LTCC应用的低温烧制MGNB（2）O（6）陶瓷的微波介电性能

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摘要

MgNb(2)O(6)ceramics doped with (Li2O-MgO-ZnO-B2O3-SiO2) glass were synthesized by the traditional solid phase reaction route. The effects of LMZBS addition on microwave dielectric properties, grain growth, phase composition and morphology of MgNb(2)O(6)ceramics were studied. The SEM results show dense and homogeneous microstructure with grain size of 1.72 mu m. Raman spectra and XRD patterns indicate the pure phase MgNb(2)O(6)ceramic. The experimental results show that LMZBS glass can markedly decrease the sintering temperature from 1300 degrees C to 925 degrees C. Higher density and lower porosity make ceramics have better dielectric properties. The MgNb(2)O(6)ceramic doped with 1 wt% LMZBS glass sintered at 925 degrees C for 5 h, possessed excellent dielectric properties:epsilon(r)= 19.7, Q center dot f= 67 839 GHz,tau(f)= -41.01 ppm degrees C-1. Moreover, the favorable chemical compatibility of the MgNb(2)O(6)ceramic with silver electrodes makes it as promising material for low temperature co-fired ceramic (LTCC) applications.
机译：通过传统的固相反应途径合成掺杂配掺杂（Li 2 O-MgO-ZnO-B2O3-SiO 2）玻璃的MgNB（2）O（6）陶瓷。研究了LMZBS对MGNB（2）O（6）陶瓷的微波介电性能，晶粒生长，相组成和形态的影响。 SEM结果显示致密且均匀的微观结构，晶粒尺寸为1.72亩。拉曼光谱和XRD图案表示纯相MGNB（2）O（6）陶瓷。实验结果表明，LMZBS玻璃可以显着降低1300℃至925摄氏度的烧结温度。更高的密度和下孔隙率使陶瓷具有更好的介电性能。 MgNB（2）O（6）掺杂含有1wt％LMZBS玻璃的陶瓷烧结在925摄氏度5小时，具有优异的介电性能：Epsilon（R）= 19.7，Q中心点F = 67 839 GHz，Tau（F. ）= -41.01 ppm度C-1。此外，MgNB（2）O（6）陶瓷与银电极的有利化学相容性使其成为低温共烧陶瓷（LTCC）应用的有前途的材料。

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  • 来源
    《RSC Advances》 |2020年第50期|共8页
  • 作者

    Wu Chenghao; Hu Yongda; Bao Shengxiang; Wang Gang; Jiang Pengbo; Chen Jie; Duan Zongzhi; Deng Wenhui;

  • 作者单位

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

    Chengdu Yaguang Elect Co Ltd Microwave Circuit &

    Syst Inst Chengdu 610054 Peoples R China;

    Chengdu Yaguang Elect Co Ltd Microwave Circuit &

    Syst Inst Chengdu 610054 Peoples R China;

    Univ Elect Sci &

    Technol China Chengdu 610054 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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