Scholarlink

<p>A Ti<sub>3</sub>SiC<sub>2</sub>-modified high-silica oxygen/phenolic aerogel composite with excellent oxidation resistance and high-temperature performance was prepared. The experimental results show that the obtained composite has significantly improved oxidation resistance. When the addition amount of Ti<sub>3</sub>SiC<sub>2</sub> is 75%, the carbonization volume shrinkage rate of the composite after aerobic static combustion is only 5.95%. At the same time, the LAR and MAR after 30 seconds of oxyacetylene ablation under a heat flux density of 1.5 MW/m<sup>2</sup> are 0.0307 mm/s and 0.0149 g/s, respectively. The compressive strength after aerobic static combustion at 1 000 °C is up to 20.43% of that before aerobic static combustion, which is 1.99 times that of the unfilled material, significantly improving the high-temperature mechanical properties of the composite.</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

Preparation and Properties of Ti3SiC2-modified High Silica/Phenolic Aerogel Composite

  • 期刊论文

  • 发表日期：

    2025年11月27日

查看全文
  • Wenjing Cao,
  • Yiming Liu,
  • Dongmei Zhao,
  • Xiaobo Wan,
  • Yang Liu,
  • Kun Huang,
  • Minxian Shi

摘要

A Ti3SiC2-modified high-silica oxygen/phenolic aerogel composite with excellent oxidation resistance and high-temperature performance was prepared. The experimental results show that the obtained composite has significantly improved oxidation resistance. When the addition amount of Ti3SiC2 is 75%, the carbonization volume shrinkage rate of the composite after aerobic static combustion is only 5.95%. At the same time, the LAR and MAR after 30 seconds of oxyacetylene ablation under a heat flux density of 1.5 MW/m2 are 0.0307 mm/s and 0.0149 g/s, respectively. The compressive strength after aerobic static combustion at 1 000 °C is up to 20.43% of that before aerobic static combustion, which is 1.99 times that of the unfilled material, significantly improving the high-temperature mechanical properties of the composite.