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<p>The drop-weight impact induced energy harvesting characteristics of cement/Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-Bi<sub>0.5</sub>K<sub>0.5</sub>TiO<sub>3</sub>-BaTiO<sub>3</sub> (BNT-BKT-BT) composites using electromagnetic radiation (EMR) technique have been presented in this paper. Four different composites of cement/BNT-BKT-BT were prepared by replacing cement with BNT-BKT-BT, a filler, by different volume fractions (0.02 ≤ <i>ϕ</i> ≤ &#xa0;0.20). The formation of the composites was ascertained using the x-ray diffraction technique. The capacitance of the sample increases, while the loss tangent was observed to decrease with filler content. The correlation between EMR parameters, viz. EMR voltage, generated DC voltage, and EMR energy were found to increase with filler concentration and applied mechanical energy with the maximum value obtained for the composite having <i>ϕ</i> = 0.20 at 1400&#xa0;mJ. Furthermore, the energy storage capacity of the samples under study was found to increase with an increase in capacitance values and filler content in the composites. The findings underscore the potential applications of the composites for wireless sensing and energy harvesting in civil infrastructure.</p>

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Drop-Weight Impact Driven Energy Harvesting Characteristics of Lead-Free Cement/BNT-BKT-BT Composites Using Electromagnetic Radiation Method

  • 期刊论文

  • 发表日期：

    2026年5月23日

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  • Vishal Kumar,
  • Sujeet Kumar Mishra,
  • Amit Kumar

摘要

The drop-weight impact induced energy harvesting characteristics of cement/Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-BaTiO3 (BNT-BKT-BT) composites using electromagnetic radiation (EMR) technique have been presented in this paper. Four different composites of cement/BNT-BKT-BT were prepared by replacing cement with BNT-BKT-BT, a filler, by different volume fractions (0.02 ≤ ϕ ≤  0.20). The formation of the composites was ascertained using the x-ray diffraction technique. The capacitance of the sample increases, while the loss tangent was observed to decrease with filler content. The correlation between EMR parameters, viz. EMR voltage, generated DC voltage, and EMR energy were found to increase with filler concentration and applied mechanical energy with the maximum value obtained for the composite having ϕ = 0.20 at 1400 mJ. Furthermore, the energy storage capacity of the samples under study was found to increase with an increase in capacitance values and filler content in the composites. The findings underscore the potential applications of the composites for wireless sensing and energy harvesting in civil infrastructure.