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Hypocrystalline ceramic aerogels for thermal insulation at extreme conditions

Author

Listed:
  • Jingran Guo

    (Harbin Institute of Technology)

  • Shubin Fu

    (Harbin Institute of Technology)

  • Yuanpeng Deng

    (Harbin Institute of Technology)

  • Xiang Xu

    (Harbin Institute of Technology)

  • Shujin Laima

    (Harbin Institute of Technology)

  • Dizhou Liu

    (Harbin Institute of Technology)

  • Pengyu Zhang

    (Harbin Institute of Technology)

  • Jian Zhou

    (Harbin Institute of Technology)

  • Han Zhao

    (Harbin Institute of Technology)

  • Hongxuan Yu

    (Harbin Institute of Technology)

  • Shixuan Dang

    (Harbin Institute of Technology)

  • Jianing Zhang

    (Harbin Institute of Technology)

  • Yingde Zhao

    (Harbin Institute of Technology)

  • Hui Li

    (Harbin Institute of Technology)

  • Xiangfeng Duan

    (University of California)

Abstract

Thermal insulation under extreme conditions requires materials that can withstand complex thermomechanical stress and retain excellent thermal insulation properties at temperatures exceeding 1,000 degrees Celsius1–3. Ceramic aerogels are attractive thermal insulating materials; however, at very high temperatures, they often show considerably increased thermal conductivity and limited thermomechanical stability that can lead to catastrophic failure4–6. Here we report a multiscale design of hypocrystalline zircon nanofibrous aerogels with a zig-zag architecture that leads to exceptional thermomechanical stability and ultralow thermal conductivity at high temperatures. The aerogels show a near-zero Poisson’s ratio (3.3 × 10−4) and a near-zero thermal expansion coefficient (1.2 × 10−7 per degree Celsius), which ensures excellent structural flexibility and thermomechanical properties. They show high thermal stability with ultralow strength degradation (less than 1 per cent) after sharp thermal shocks, and a high working temperature (up to 1,300 degrees Celsius). By deliberately entrapping residue carbon species in the constituent hypocrystalline zircon fibres, we substantially reduce the thermal radiation heat transfer and achieve one of the lowest high-temperature thermal conductivities among ceramic aerogels so far—104 milliwatts per metre per kelvin at 1,000 degrees Celsius. The combined thermomechanical and thermal insulating properties offer an attractive material system for robust thermal insulation under extreme conditions.

Suggested Citation

  • Jingran Guo & Shubin Fu & Yuanpeng Deng & Xiang Xu & Shujin Laima & Dizhou Liu & Pengyu Zhang & Jian Zhou & Han Zhao & Hongxuan Yu & Shixuan Dang & Jianing Zhang & Yingde Zhao & Hui Li & Xiangfeng Dua, 2022. "Hypocrystalline ceramic aerogels for thermal insulation at extreme conditions," Nature, Nature, vol. 606(7916), pages 909-916, June.
  • Handle: RePEc:nat:nature:v:606:y:2022:i:7916:d:10.1038_s41586-022-04784-0
    DOI: 10.1038/s41586-022-04784-0
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    Citations

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    Cited by:

    1. Feng Xiong & Jiawei Zhou & Yongkang Jin & Zitao Zhang & Mulin Qin & Haiwei Han & Zhenghui Shen & Shenghui Han & Xiaoye Geng & Kaihang Jia & Ruqiang Zou, 2024. "Thermal shock protection with scalable heat-absorbing aerogels," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Lei Su & Shuhai Jia & Junqiang Ren & Xuefeng Lu & Sheng-Wu Guo & Pengfei Guo & Zhixin Cai & De Lu & Min Niu & Lei Zhuang & Kang Peng & Hongjie Wang, 2023. "Strong yet flexible ceramic aerogel," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Xiangyu Meng & Chuntong Zhu & Xin Wang & Zehua Liu & Mengmeng Zhu & Kuibo Yin & Ran Long & Liuning Gu & Xinxing Shao & Litao Sun & Yueming Sun & Yunqian Dai & Yujie Xiong, 2023. "Hierarchical triphase diffusion photoelectrodes for photoelectrochemical gas/liquid flow conversion," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    4. Lei Zhuang & De Lu & Jijun Zhang & Pengfei Guo & Lei Su & Yuanbin Qin & Peng Zhang & Liang Xu & Min Niu & Kang Peng & Hongjie Wang, 2023. "Highly cross-linked carbon tube aerogels with enhanced elasticity and fatigue resistance," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Xinchen Zhou & Xiang Xu & Jiping Huang, 2023. "Adaptive multi-temperature control for transport and storage containers enabled by phase-change materials," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    6. Xiaoyu Zhang & Qi Sun & Xing Liang & Puzhong Gu & Zhenyu Hu & Xiao Yang & Muxiang Liu & Zejun Sun & Jia Huang & Guangming Wu & Guoqing Zu, 2024. "Stretchable and negative-Poisson-ratio porous metamaterials," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    7. Lujia Han & Shile Chen & Honghua Li & Yanhao Dong & Chang-An Wang & Jiangtao Li, 2024. "Rapid and inexpensive synthesis of liter-scale SiC aerogels," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    8. Benjamin Tawiah & Emmanuel A. Ofori & Fei Bin, 2023. "Scientometric Review of Sustainable Fire-Resistant Polysaccharide-Based Composite Aerogels," Sustainability, MDPI, vol. 15(16), pages 1-34, August.
    9. Hongxing Wang & Longdi Cheng & Jianyong Yu & Yang Si & Bin Ding, 2024. "Biomimetic Bouligand chiral fibers array enables strong and superelastic ceramic aerogels," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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