Scholarlink

<p>In this research, bismuth ferrite with general composition BiFeO<sub>3</sub> (BFO) was mixed mechanically with bismuth titanate with composition Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub> (BTO) and CuO to create ternary pure, La-Ag, and Y-Ag doped BFO/BTO/CuO nanocomposites. A BFO, BTO, and CuO pure phase synthesis and the existence of both phases in composites are shown by an XRD. investigation. Rietveld's refinement demonstrates that all the theoretical and experimental data's reflection peaks are identical. The composites' typical crystallite size lies around 22–26&#xa0;nm. According to microstructure studies and optical analysis, the addition of Ag-La and Ag-Y dopants results in a reduced particle size in nanometers and a decrease in the energy band gap from 4.75&#xa0;eV to 3.54&#xa0;eV. The magnetic property shows that the inclusion of BTO and&#xa0;CuO&#xa0;changes the magnetic parameters of BFO&#xa0;composites. All prepared samples have squareness ratio values that are less than 0.5 and range from 0.240 to 0.287, which suggests the presence of multi-magnetic domain structures. BBCY (Y-Ag-BFO/BTO/CuO) composite shows reflection loss (RL) of -25.09&#xa0;dB with a&#xa0;-10&#xa0;dB absorption bandwidth of 1.41&#xa0;GHz at a sample thickness of 2&#xa0;mm. Additionally, the shielding effectiveness (SE<sub>T</sub>) exceeded 20&#xa0;dB. These results suggest that the as-prepared nanocomposites have significant potential for use in microwave absorption, electromagnetic interference (EMI) shielding, and stealth technologies.</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, magnetic, optical, and X-band electromagnetic analysis of ternary nanocomposites: CuO, BiFeO3, and Bi4Ti3O12

  • 期刊论文

  • 发表日期：

    2025年11月2日

查看全文
  • P. Harshapriya,
  • Pawandeep Kaur,
  • Deepak Basandrai

摘要

In this research, bismuth ferrite with general composition BiFeO3 (BFO) was mixed mechanically with bismuth titanate with composition Bi4Ti3O12 (BTO) and CuO to create ternary pure, La-Ag, and Y-Ag doped BFO/BTO/CuO nanocomposites. A BFO, BTO, and CuO pure phase synthesis and the existence of both phases in composites are shown by an XRD. investigation. Rietveld's refinement demonstrates that all the theoretical and experimental data's reflection peaks are identical. The composites' typical crystallite size lies around 22–26 nm. According to microstructure studies and optical analysis, the addition of Ag-La and Ag-Y dopants results in a reduced particle size in nanometers and a decrease in the energy band gap from 4.75 eV to 3.54 eV. The magnetic property shows that the inclusion of BTO and CuO changes the magnetic parameters of BFO composites. All prepared samples have squareness ratio values that are less than 0.5 and range from 0.240 to 0.287, which suggests the presence of multi-magnetic domain structures. BBCY (Y-Ag-BFO/BTO/CuO) composite shows reflection loss (RL) of -25.09 dB with a -10 dB absorption bandwidth of 1.41 GHz at a sample thickness of 2 mm. Additionally, the shielding effectiveness (SET) exceeded 20 dB. These results suggest that the as-prepared nanocomposites have significant potential for use in microwave absorption, electromagnetic interference (EMI) shielding, and stealth technologies.