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A novel microwave dielectric ceramic Li2NiZrO4 with rock salt structure

机译:一种新型微波介电陶瓷Li2Nizro4,岩盐结构

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Low loss Li2NiZrO4 ceramics with rock salt structure were successfully prepared by the solid-phase reaction method. The relationship between sintering temperature, phase composition and dielectric properties of Li2NiZrO4 ceramics was reported for the first time. The grain size gradually increased and the porosity decreased with the sintering temperature increasing. When the sintering temperature exceeds 1300 degrees C, the grains grow abnormally and some grains begin to melt. The XRD patterns indicated the second phase ZrO2 appeared due to the volatilization of lithium. The grains grow abnormally and a second phase of ZrO2 increased the loss of Li2NiZrO4 ceramics. The samples sintered at 1300 degrees C possessed the best dielectric properties: epsilon(r) = 12.3, Q(f) = 20000 GHz, tau(f) = -23.4 ppm degrees C-1, which would make the ceramic a possible candidate for millimeter-wave applications.
机译:通过固相反应方法成功地制备了具有岩盐结构的低损耗Li2Nizro4陶瓷。 首次报道了Li2Nizro4陶瓷的烧结温度,相组合物和电介质性质的关系。 晶粒尺寸逐渐增加,孔隙率随烧结温度的增加而降低。 当烧结温度超过1300℃时,晶粒异常生长,有些晶粒开始熔化。 由于锂的挥发,XRD图案表明第二阶段ZrO2出现。 晶粒异常生长,ZrO2的第二阶段增加了Li2Nizro4陶瓷的损失。 在1300摄氏度下烧结的样品具有最佳介电性能:ε(R)= 12.3,Q(F)= 20000 GHz,Tau(F)= -23.4 ppm C-1,这将使陶瓷成为可能的候选者 毫米波应用。

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    《RSC Advances》 |2019年第56期|共4页
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  • 正文语种 eng
  • 中图分类 化学;
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