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Experimental and Computational Analysis of Aerogels and Aerogel-Composites Under Different Environmental Conditions for Biomedical and Space Applications.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Experimental and Computational Analysis of Aerogels and Aerogel-Composites Under Different Environmental Conditions for Biomedical and Space Applications./
作者:	Ghimire, Sagar.
面頁冊數:	1 online resource (113 pages)
附註:	Source: Masters Abstracts International, Volume: 84-06.
Contained By:	Masters Abstracts International84-06.
標題:	Materials science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29998260click for full text (PQDT)
ISBN:	9798357580443

Experimental and Computational Analysis of Aerogels and Aerogel-Composites Under Different Environmental Conditions for Biomedical and Space Applications.
Ghimire, Sagar.

Experimental and Computational Analysis of Aerogels and Aerogel-Composites Under Different Environmental Conditions for Biomedical and Space Applications. - 1 online resource (113 pages)

Source: Masters Abstracts International, Volume: 84-06.

Thesis (M.S.)--The University of Memphis, 2022.

Includes bibliographical references

Aerogels are highly porous and lightweight materials with a unique combination of physical and chemical properties that can be customized to fit the parameter space desired, for the application at hand. The number of applications that have enlisted the use of aerogels have grown substantially in recent years ranging from biomedicine to aerospace. This work investigates the interaction of aerogels and aerogel composites with its environment namely interaction with two types of incident waves: pressure waves and UV radiation. In the first case, the effect of aerogel porosity and stiffness on ultrasound wave propagation in an aqueous and a non-aqueous environment was explored. The detection, tracking, attenuation, and damping caused by aerogels was investigated both computationally and experimentally. Image analysis techniques for acoustic parameter extraction such as acoustic attenuation coefficient was developed. The motivation behind this work was to achieve a real time visualization of wave interactions with aerogels in the two different media mentioned earlier, using k wave tool, and by recording the regions of maximum and minimum pressure at the interfaces. Results indicate the relationship between the degree of attenuation, porosity, and material stiffness and can be applied to any combination of parameter space. In the second phase of the study, aerogel composites were exposed to direct UV radiation outside of the Earth's atmosphere and the effect of the prolonged exposure (6 months) on the behavior of the composites was studied. Specifically, the effect of the radiation on the excitation/ emission behavior of thermographic phosphors coated on aerogels under low Earth orbit conditions. Investigating the effect of the radiation on the mechanical properties of the aerogels was not in the scope of this work and will not be discussed.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798357580443Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

AerogelIndex Terms--Genre/Form:

542853
Electronic books.

Experimental and Computational Analysis of Aerogels and Aerogel-Composites Under Different Environmental Conditions for Biomedical and Space Applications.
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