Scholarlink

<p>The effect of different fiber stacking sequences using two natural fibers bamboo and silk fabric (B/S/S/B &amp; B/S/B/S) and varying volume fractions of nickel oxide (NiO) filler particles (0.5, 1, 2, 3, 4, and 5 vol%) on the performance of epoxy based hybrid composites was investigated. The study focused on mechanical properties (tensile, flexural, impact strength, and hardness), electromagnetic interference (EMI) shielding effectiveness, and dielectric behavior. Among the tested configurations, the composite with 3 vol% NiO and an alternating fiber stacking sequence (B/S/B/S) exhibited superior mechanical properties, recording a tensile strength of 189&#xa0;MPa, flexural strength of 234&#xa0;MPa, and impact energy absorption of 7.60&#xa0;J. Scanning electron microscopy (SEM) was used to analyze the microstructural features and failure mechanisms, indicates enhanced adhesion of fibre and dispersion of particles in the matrix. In contrast, the composite with the same alternating fiber stacking but containing 5 vol% NiO showed the highest EMI shielding effectiveness and improved dielectric constant and loss in the E to J frequency bands.Additionally, the composite demonstrated the higher surface hardness of 99 Shore-D. These properties improved electromagnetic shielding composites could be used in tele-communication, radar and mobile communication 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

Microwave attenuation properties of NiO-epoxy composites reinforced with bamboo fiber and conductive silk fabric in E, F, I, and J bands at elevated temperature

  • 期刊论文

  • 发表日期：

    2026年2月4日

查看全文
  • M. Murali,
  • A. Kannan,
  • K. Sudhaman,
  • M. Anto Bennet

摘要

The effect of different fiber stacking sequences using two natural fibers bamboo and silk fabric (B/S/S/B & B/S/B/S) and varying volume fractions of nickel oxide (NiO) filler particles (0.5, 1, 2, 3, 4, and 5 vol%) on the performance of epoxy based hybrid composites was investigated. The study focused on mechanical properties (tensile, flexural, impact strength, and hardness), electromagnetic interference (EMI) shielding effectiveness, and dielectric behavior. Among the tested configurations, the composite with 3 vol% NiO and an alternating fiber stacking sequence (B/S/B/S) exhibited superior mechanical properties, recording a tensile strength of 189 MPa, flexural strength of 234 MPa, and impact energy absorption of 7.60 J. Scanning electron microscopy (SEM) was used to analyze the microstructural features and failure mechanisms, indicates enhanced adhesion of fibre and dispersion of particles in the matrix. In contrast, the composite with the same alternating fiber stacking but containing 5 vol% NiO showed the highest EMI shielding effectiveness and improved dielectric constant and loss in the E to J frequency bands.Additionally, the composite demonstrated the higher surface hardness of 99 Shore-D. These properties improved electromagnetic shielding composites could be used in tele-communication, radar and mobile communication technologies.