OPTIMIZING YOUNG'S MODULUS IN SILICA AEROGELS FOR ENHANCED MECHANICAL PERFORMANCE
Keywords:
Hologram, mechanical stressing, Young’s modulusAbstract
Aerogel is not only super insulating material but also reveal unusual acoustic and mechanical properties. They are renowned for their exceptional thermal, optical, and acoustic properties, are limited by their poor mechanical strength. Enhancing their mechanical performance is crucial for broader applications. This study focuses on optimizing the Young's modulus of silica aerogels to improve their mechanical resilience. Our findings provide insights into designing silica aerogels with optimized Young's modulus, paving the way for their use in diverse engineering applications. The technique of interferometry was applied to study elastic constant of aerogels. We have successfully studied the holograms of stressed aerogel samples. It was observed that due to mechanical stressing, number of fringes localised on the aerogel samples and these fringes were used to determine the Young’s modulus (Y) of samples. Here, we report a new mode for determination of ‘Y’ of aerogel monoliths.
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References
[1] S. S. Kistler, Nature, 127 [1931] 741.
[2] T. Woigier, J Phalippou, Rev. Phys. Appl: C 4 – 24 (1984) 179.
[3] K. E. Parmenter, J Milstein, J. Non-crystalline Solids, 223 (1998) 179.
[4] M. Gronour, A Kadur, J Fricke (Ed). Aerogels, Springer, Berlin, 6 (1986).
[5] D. Harnath, P. B. Wagh, G. M. Pajonk & A. V. Rao., Material res. Buletin, 08 (1997) 1079.
[6] Deeptanshu Sivaraman, Shanyu Zhao, Subramaniam Iswar, Marco Lattuada, Wim J. Malfait, Adv. Eng. Mater. 23, (2021) 2100376, https://doi.org/10.1002/adem.202100376.
[7] H. Omranpour; A. Dourbash; S. Motahari AIP Conf. Proc. 1593, (2014) 298–302 https://doi.org/10.1063/1.4873786.
[8] P. Mohan. C. Bhan, P Lal, R. Hradynath, Optics & Laser Tech. 4 (1982) 269.
[9] P. Hariharan, “Optical Holography’’, Cambridge Univ. Press, London, P 210.
[10] K. A. Haines and B. P. Hildebrand, App. Optics, 5 (1996) 595.
[11] Aleksondrove E. B., Bonch. Bruevich A. M., Soviet Phy. Tech. Phys. 12 (1967) 258.
[12] L. O. Heflinger, R. E. Brooks and R.F. Wuerker, J. Appl. Phys. 37 (1966) 462.
[13] A. V. Rao, M. M. Kulkarni, Materials Res. Buletin 37 (9), 1667-1677, 2002.
[14] A. V. Rao, G. M. Pajonk, N. N. Parvathy, J. of Sol-Gel Science & Technol. 3 (3) (1994) 205-217,
[15] M. S. Kavale, D. B. Mahadik, V. G. Parale, A. V. Rao, P. B. Wagh, S. C. Gupta, AIP Conference Proceedings, 1 (144) (2012) 1283-1284.
[16] Hegde N. D. & Rao A.V., J. Mater Sci. 42, (2007) 6965–6971.
[17] Aelion R., Lobel A., and Eirich F., Recueil Traveux Chimiques, 69 (1950) 61-75.
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