Advertisement

Rigid silica xerogel/alumina fiber composites and their thermal insulation properties

  • Junning LiEmail author
  • Wenjun Wu
  • Hailong Yang
  • Xiaoting Wang
  • Xiaoyan Wang
  • Chencheng Sun
  • Zijun Hu
Article
  • 13 Downloads

Abstract

Mechanically robust silica xerogel/alumina fiber composites were successfully prepared by a cost-effective ambient pressure drying route. Microstructure investigation shows that the alumina fibers embed into the silica xerogel matrix as reinforcements, which improves the strength of the composites greatly. As the alumina fibers volume increases to 4.0%, the compressive and flexural strength value of the composite is 0.96 MPa and 2.53 MPa, while the thermal conductivity at room temperature slightly changes between 0.051 and 0.059 W/mK. The composite is hydrophobic and keeps water repellent until 300 °C as shown by the TG–DSC result. After being heated at 800 °C for 25 min, the composite remains structurally intact demonstrated good thermal resistant property. The above characteristics indicate that the as prepared composite has great potential application as thermal insulation material in energy-saving area.

Keywords

Silica xerogel Composite Alumina fiber Thermal insulation Mechanical property 

Notes

Acknowledgements

This study was funded by the National Natural Science Foundation of China (Grant Number 51576058). The authors declare that they have no conflict of interest.

References

  1. 1.
    M. Talou, P. Miranzo, M. Camerucci, Int. J. Appl. Ceram. Technol. 14, 738 (2017)CrossRefGoogle Scholar
  2. 2.
    R. Baetens, B.P. Jelle, A. Gustavsen, Energy Build. 43, 761 (2011)CrossRefGoogle Scholar
  3. 3.
    R. Zhang, C. Ye, B. Wang, J. Porous Mater. 25, 171 (2018)CrossRefGoogle Scholar
  4. 4.
    T. Shimizu, K. Matsuura, H. Furue, K. Matsuzak, J. Eur. Ceram. Soc. 33, 3429 (2013)CrossRefGoogle Scholar
  5. 5.
    R. Zhang, X. Hou, C. Ye, B. Wang, J. Alloys Compd. 699, 511 (2017)CrossRefGoogle Scholar
  6. 6.
    M. Koebel, R. Arnaud, P. Achard, J. Sol-Gel Sci. Technol. 63, 315 (2012)CrossRefGoogle Scholar
  7. 7.
    J. Laskowski, B. Milow, L. Ratke, J. Non-Cryst. Solids 441, 42 (2016)CrossRefGoogle Scholar
  8. 8.
    M. Reim, J. Manara, S. Korder, M. Arduini-Schuster, H.-P. Ebert, J. Fricke, Sol. Energy 79, 131 (2005)CrossRefGoogle Scholar
  9. 9.
    M. Koebel, L. Huber, S. Zhao, W.J. Malfait, J. Sol-Gel Sci. Technol. 79, 308 (2016)CrossRefGoogle Scholar
  10. 10.
    P.R. Aravind, P. Shajesh, G.D. Soraru, K.G.K. Warrier, J. Sol-Gel Sci. Technol. 54, 105 (2010)CrossRefGoogle Scholar
  11. 11.
    J. He, X. Li, D. Su, H. Ji, X. Wang, J. Eur. Ceram. Soc. 36, 1487 (2016)CrossRefGoogle Scholar
  12. 12.
    Z. Li, X. Cheng, S. He, X. Shi, L. Gong, H. Zhang, Compos. A 84, 316 (2016)CrossRefGoogle Scholar
  13. 13.
    M. Li, H. Jiang, D. Xu, J. Porous Mater. 25, 1417 (2018)CrossRefGoogle Scholar
  14. 14.
    J. He, X. Li, D. Su, H. Ji, Y. Qiao, J. Mater. Sci. 50, 7488 (2015)CrossRefGoogle Scholar
  15. 15.
    A. Hoseini, C. McCague, M. Andisheh-Tadbir, M. Bahrami, Int. J. Heat Mass Transfer 93, 1124 (2016)CrossRefGoogle Scholar
  16. 16.
    T.M. Tillotson, L.W. Hrubesh, J. Non-Cryst. Solids 145, 44 (1992)CrossRefGoogle Scholar
  17. 17.
    L. Shang, D. Wu, Y. Pu, H. Wang, F. Wang, Z. Gao, Ceram. Int. 42, 3351 (2016)CrossRefGoogle Scholar
  18. 18.
    W.J. Malfait, S. Zhao, R. Verel, S. Iswar, D. Rentsch, R. Fener, Y. Zhang, B. Milow, M. Koebel, Chem. Mater. 27, 6737 (2015)CrossRefGoogle Scholar
  19. 19.
    V.G. Parale, D.B. Mahadik, S.A. Mahadik, M.S. Kavale, R.A. Venkateswara, P.B. Wagh, J. Sol-Gel Sci. Technol. 63, 573 (2012)CrossRefGoogle Scholar
  20. 20.
    J.L. Gurav, A.V. Rao, Y. Nadargi, J. Sol-Gel Sci. Technol. 50, 275 (2009)CrossRefGoogle Scholar
  21. 21.
    G. Lu, X. Wang, Y. Duan, X. Li, J. Non-Cryst. Solids 357, 3822 (2011)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Science and Technology on Advanced Functional Composite LaboratoryAerospace Research Institute of Materials & Processing TechnologyBeijingChina

Personalised recommendations