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首页> 外文期刊>Journal of materials science >Influence of Li_2O-MgO-ZnO-B_2O_3-SiO_2 glass doping on the microwave dielectric properties and sintering temperature of Li_3Mg_2NbO_6 ceramics
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Influence of Li_2O-MgO-ZnO-B_2O_3-SiO_2 glass doping on the microwave dielectric properties and sintering temperature of Li_3Mg_2NbO_6 ceramics

机译:Li_2O-MgO-ZnO-B_2O_3-SiO_2掺杂对微波介电性能和Li_3mg_2nbo_6陶瓷的微波介电性能和烧结温度的影响

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摘要

Li_3Mg_2NbO_6+x wt% Li_2O-MgO-ZnO-B_2O_3-SiO_2 (LMZBS, x = 2,4, 6, 8, 10) microwave dielectric ceramics with the rock-salt structure were primarily investigated by the traditional solid-state method. The microstructures, microwave dielectric properties, and sintering characteristics were studied systematically according to the doping concentration and sintering temperature. It could be seen that the LMZBS glass effectively lower the sintering temperature of Li_3Mg_2NbO_6 ceramics from 1250 to 925 °C with microwave dielectric properties changing as a function of the amounts of the LMZBS glass. The experimental results showed that 4 wt% LMZBS glass enabled Li_3Mg_2NbO_6 ceramics sintered at 925 °C for 4 h to have excellent microwave dielectric properties: ε_r = 16.02, Q×f=56,455 GHz, τ_f=- 18.81 ppm/°C. Therefore, Li_3Mg_2NbO_6 ceramics doped with LMZBS glass meet the requirements of low-temperature co-fired ceramics.
机译:Li_3MG_2NBO_6 + X WT%Li_2O-MgO-ZnO-B_2O_3-SiO_2(LMZBS,X = 2,4,6,8,10)微波介质陶瓷,主要通过传统的固态方法研究。根据掺杂浓度和烧结温度系统地研究了微观结构,微波介电性能和烧结特性。可以看出,LMZBS玻璃通过1250至925℃有效地降低了Li_3mg_2nbo_6陶瓷的烧结温度,随着LMZBS玻璃的量的函数而变化。实验结果表明,在925℃下烧结4wt%的LMZBS玻璃Li_3mg_2nbO_6陶瓷4小时,具有优异的微波介电性能:ε_r= 16.02,q×f = 56,455GHz,τ_f= -18.81ppm /°C。因此,LI_3MG_2NBO_6陶瓷掺杂有LMZBS玻璃符合低温共烧陶瓷的要求。

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  • 来源
    《Journal of materials science》 |2020年第19期|17029-17035|共7页
  • 作者单位

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

    School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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