Scholarlink

<p>The escalating problem of electromagnetic pollution calls for structural materials that integrate wave absorption with mechanical robustness. This review presents a multi-scale design framework that integrates microscale loss mechanisms, mesoscale filler/pore engineering, and macroscale structural wave interference—a departure from compartmentalized approaches. Key findings reveal systematic trade-offs. For porous foams, ultra-broadband absorption (EAB up to 14.8&#xa0;GHz) comes at the cost of low compressive strength (&lt; 10&#xa0;MPa). In contrast, 3D gradient structures maintain high strength (&gt; 44&#xa0;MPa) while providing broadband absorption. Furthermore, designs that achieve &gt; 14&#xa0;GHz bandwidth together with &gt; 40&#xa0;MPa strength are now feasible. Persistent challenges include low-frequency performance, alkali durability, and scalable fabrication. The review concludes by presenting transformative pathways that leverage AI-guided design, cement-specific additive manufacturing, and sustainable material cycles. These pathways offer a systematic conceptual framework for intelligent, structurally integrated cement-based metamaterials.</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

Cementitious electromagnetic wave absorbers: a multi-scale design framework for structural composites

  • 期刊论文

  • 发表日期：

    2026年7月22日

查看全文
  • Yonggang Deng,
  • Zijian Wang

摘要

The escalating problem of electromagnetic pollution calls for structural materials that integrate wave absorption with mechanical robustness. This review presents a multi-scale design framework that integrates microscale loss mechanisms, mesoscale filler/pore engineering, and macroscale structural wave interference—a departure from compartmentalized approaches. Key findings reveal systematic trade-offs. For porous foams, ultra-broadband absorption (EAB up to 14.8 GHz) comes at the cost of low compressive strength (< 10 MPa). In contrast, 3D gradient structures maintain high strength (> 44 MPa) while providing broadband absorption. Furthermore, designs that achieve > 14 GHz bandwidth together with > 40 MPa strength are now feasible. Persistent challenges include low-frequency performance, alkali durability, and scalable fabrication. The review concludes by presenting transformative pathways that leverage AI-guided design, cement-specific additive manufacturing, and sustainable material cycles. These pathways offer a systematic conceptual framework for intelligent, structurally integrated cement-based metamaterials.