Scholarlink

<p>This research article presents studies on the structural, microstructural, microwave performance, and electromagnetic interference (EMI) shielding effectiveness of double perovskite La<sub>2</sub>ZnTiO<sub>6</sub> (LZTO) ceramics synthesized by the conventional solid-state reaction process. The Rietveld refinement through the Fullprof program showed that the structure represents a pure perovskite crystal having a monoclinic crystalline structure belonging to the P2<sub>1</sub>/n space group with unit cell parameters a = 7.8885&#xa0;Å, b = 5.6051&#xa0;Å, and c = 5.5689&#xa0;Å, respectively. The FE-SEM micrographs reveal various plate-like grains, with an average grain size estimated as 2.23&#xa0;μm. Energy dispersive spectra (EDS) show that all peaks are well resolved. The maximum values of SE<sub>R</sub>, SE<sub>A,</sub> and SE<sub>T</sub> are found to be −8.5&#xa0;dB at 18&#xa0;GHz, −4.45&#xa0;dB at 17.46&#xa0;GHz, and −10.5&#xa0;dB at 17.5&#xa0;GHz, respectively. The (Q × f) value of LZTO perovskite was observed as 92,887 at 16.4&#xa0;GHz, with a reflection loss of -64.31&#xa0;dB at 17.39&#xa0;GHz within Ku-band (12.4- 18&#xa0;GHz) with the help of a Vector Network Analyser (VNA). The higher quality factor, exceptional dielectric properties of La<sub>2</sub>ZnTiO<sub>6</sub> (LZTO), are suitable for microwave and EMI Shielding applications in the GHz frequency range.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Structural, microwave, and EMI shielding characteristics of double perovskite La2ZnTiO6 ceramics

  • 期刊论文

  • 发表日期：

    2025年11月28日

查看全文
  • Jitendra Kumar,
  • Dev K. Mahato,
  • Dibyaranjan Das,
  • S. K. S. Parashar

摘要

This research article presents studies on the structural, microstructural, microwave performance, and electromagnetic interference (EMI) shielding effectiveness of double perovskite La2ZnTiO6 (LZTO) ceramics synthesized by the conventional solid-state reaction process. The Rietveld refinement through the Fullprof program showed that the structure represents a pure perovskite crystal having a monoclinic crystalline structure belonging to the P21/n space group with unit cell parameters a = 7.8885 Å, b = 5.6051 Å, and c = 5.5689 Å, respectively. The FE-SEM micrographs reveal various plate-like grains, with an average grain size estimated as 2.23 μm. Energy dispersive spectra (EDS) show that all peaks are well resolved. The maximum values of SER, SEA, and SET are found to be −8.5 dB at 18 GHz, −4.45 dB at 17.46 GHz, and −10.5 dB at 17.5 GHz, respectively. The (Q × f) value of LZTO perovskite was observed as 92,887 at 16.4 GHz, with a reflection loss of -64.31 dB at 17.39 GHz within Ku-band (12.4- 18 GHz) with the help of a Vector Network Analyser (VNA). The higher quality factor, exceptional dielectric properties of La2ZnTiO6 (LZTO), are suitable for microwave and EMI Shielding applications in the GHz frequency range.