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<p>A new type of ceramic (1-<i>x</i>)K<sub>0.48</sub>Na<sub>0.52</sub>NbO<sub>3</sub>-<i>x</i>Ba<sub>0.05</sub>(Bi<sub>0.5</sub>K<sub>0.5</sub>)<sub>0.95</sub>Zr<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>3</sub>(KNN-<i>x</i>BBKZT) was prepared by the traditional solid phase sintering method. The results of XRD (X-Ray Diffraction), SEM (Scanning Electron Microscope), EDS (Energy Dispersive Spectroscopy) and other instrument tests showed that BBKZT fully entered the KNN lattice, forming a single stable perovskite structure. The ceramics were in the orthorhombic(O) phase at 0 ≤ <i>x</i> ≤ 0.02, orthorhombic–tetragonal(O-T) phase at 0.02 &lt; <i>x</i> ≤ 0.035, and rhombohedral-tetragonal(R-T) phase at 0.035 &lt; <i>x</i> ≤ 0.05. Performance testing shows that in the polymorphic phase boundary (PPB) region with <i>x</i> = 0.04, the ceramic performance is the best (<i>d</i><sub>33</sub> = 288 pC/N, <i>k</i><sub>p</sub> = 42.68%, <i>ε</i><sub>r</sub> = 1443, tan<i>δ</i> = 1.72%, <i>P</i><sub>r</sub> = 17.76μC/cm<sup>2</sup>, <i>E</i><sub>C</sub> = 16.9&#xa0;kV/cm, and <i>T</i><sub>C</sub> = 348 ℃).</p>

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Effect of Ba0.05(Bi0.5K0.5)0.95Zr0.9Ti0.1O3 doped KNN based ceramics on structure and electrical properties

  • 期刊论文

  • 发表日期：

    2026年2月5日

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  • Fan Si,
  • Hengwen Cheng,
  • Qiyi Yin,
  • Hui Zhang,
  • Kunhong Hu,
  • Hao Zu,
  • Chen Chen,
  • Zhongrui Du,
  • Xiangyu Zhu,
  • Hao Wang

摘要

A new type of ceramic (1-x)K0.48Na0.52NbO3-xBa0.05(Bi0.5K0.5)0.95Zr0.9Ti0.1O3(KNN-xBBKZT) was prepared by the traditional solid phase sintering method. The results of XRD (X-Ray Diffraction), SEM (Scanning Electron Microscope), EDS (Energy Dispersive Spectroscopy) and other instrument tests showed that BBKZT fully entered the KNN lattice, forming a single stable perovskite structure. The ceramics were in the orthorhombic(O) phase at 0 ≤ x ≤ 0.02, orthorhombic–tetragonal(O-T) phase at 0.02 < x ≤ 0.035, and rhombohedral-tetragonal(R-T) phase at 0.035 < x ≤ 0.05. Performance testing shows that in the polymorphic phase boundary (PPB) region with x = 0.04, the ceramic performance is the best (d33 = 288 pC/N, kp = 42.68%, εr = 1443, tanδ = 1.72%, Pr = 17.76μC/cm2, EC = 16.9 kV/cm, and TC = 348 ℃).