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Electrical properties of, Na1−0.315K0.315Nb1−yTayO3 (0 ≤ y ≤ 0.05) system
Ferroelectrics ( IF 0.8 ) Pub Date : 2020-05-04
Jyotsana Negi, Surendra Singh, N. S. Panwar

Na0.685K0.315Nb1−yTay O3 (where y = 0, 0.01, 0.02, 0.03, 0.04, 0.05) based ceramics were synthesized by the conventional solid-state reaction process. The effects of (Ta) – doping on the phase structure and electrical properties of (NKNTaO3) were observed. The cell parameters were refined by High Score Plus software, using Rietveld method, The monoclinic Pm(6) space group was chosen in these refinements. X-ray diffraction analysis shows that the crystal structure of the ceramics, without and with Ta-doping possessed monoclinic symmetry. Among the prepared compositions, a break in the XRD peaks shifting tendency was observed at y = 0.03, and also maximum dielectric permittivity, loss tangent and electrical conductivity observed at the composition with y = 0.03.



中文翻译:

Na1-0.315K0.315Nb1-yTayO3(0≤y≤0.05)系统的电性能

 通过常规的固态反应方法合成了基于Na 0.685 K 0.315 Nb 1-y Ta y O 3(其中y = 0、0.01、0.02、0.03、0.04、0.05)的陶瓷。观察到(Ta)掺杂对(NKNTaO 3)的相结构和电性能的影响。通过High Score Plus软件,使用Rietveld方法对单元格参数进行了细化,在这些细化中选择了单斜Pm(6)空间群。X射线衍射分析表明,不掺Ta和掺Ta的陶瓷晶体​​结构具有单斜晶对称性。在制备的组合物中,在y处观察到XRD峰移动趋势的破坏。 = 0.03,并且在y  = 0.03的情况下观察到的最大介电常数,损耗角正切和电导率。

更新日期:2020-05-04
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