Scholarlink

<p>The unique advantages of surface/interface engineering are pivotal in advancing the design and development of high-performance electromagnetic wave (EMW) absorption materials. We present a universal microwave molten salt carbon (C) diffusion control strategy based on surface/interface engineering. This method leverages microwaves to promote the amorphous transformation and rapid diffusion of C on the carbon fiber surface, allowing for the rapid and controlled formation of three-dimensional multilayered gradient core-shell structures, primarily consisting of Ti<sub>2</sub>AlC<sub>0.5</sub>N<sub>0.5</sub> MAX. This unique structure with cavities contributes to the incident and multiple EMW losses. TACN-1 exhibited an efficient reflection loss of −83.4 dB at a thickness of just 1.9 mm and effectively isolates internal radiant heat, making it a promising material for stealth applications. This study not only advances the application of diffusion-controlled surface/interface engineering but also introduces a universal approach for modulating multilayered gradient structures in MAX phase ceramics.</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

Multilayered gradient Ti2AlC0.5N0.5 prepared by crystal/amorphous C diffusion for efficient electromagnetic absorption and thermal shielding

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月7日

查看全文
  • Cheng Xie,
  • Lei Xu,
  • Zhigang Shen,
  • Junyu Lu,
  • Yongfen Sun,
  • Zhaohui Han,
  • Yuchen Feng,
  • Yanzhi Liu

摘要

The unique advantages of surface/interface engineering are pivotal in advancing the design and development of high-performance electromagnetic wave (EMW) absorption materials. We present a universal microwave molten salt carbon (C) diffusion control strategy based on surface/interface engineering. This method leverages microwaves to promote the amorphous transformation and rapid diffusion of C on the carbon fiber surface, allowing for the rapid and controlled formation of three-dimensional multilayered gradient core-shell structures, primarily consisting of Ti2AlC0.5N0.5 MAX. This unique structure with cavities contributes to the incident and multiple EMW losses. TACN-1 exhibited an efficient reflection loss of −83.4 dB at a thickness of just 1.9 mm and effectively isolates internal radiant heat, making it a promising material for stealth applications. This study not only advances the application of diffusion-controlled surface/interface engineering but also introduces a universal approach for modulating multilayered gradient structures in MAX phase ceramics.