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Superhydrophobic and Oleophobic Surf...

Liu, Zirui.

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Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications./
作者:	Liu, Zirui.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	85 p.
附註:	Source: Masters Abstracts International, Volume: 84-08.
Contained By:	Masters Abstracts International84-08.
標題:	Mechanical engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30248109
ISBN:	9798368484549

Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications.
Liu, Zirui.

Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 85 p.

Source: Masters Abstracts International, Volume: 84-08.

Thesis (M.A.Sc.)--University of Windsor (Canada), 2023.

This item must not be sold to any third party vendors.

Surface patterning is an overwhelming approach to mechanically modifying metal surfaces and improving their tribological properties, such as repellency, lower friction, and more excellent corrosion resistance. Patterned surfaces can be applied to various industrial uses, such as cutting tools, submarines, and self-cleaning surfaces. In this paper, the novel nature-inspired flat-top-pillar "double-undercut" designs were proposed to achieve an apparent angle that satisfies super-hydrophobicity and endure higher pressure on which external forces are exerted. The main objective is to enlarge the change in Gibbs free energy for the system to exhibit a heterogeneous wetting to a homogeneous one by excavation on the surface needed to be patterned to obtain an additional 30% of the atmospheric pressure while maintaining an apparent contact angle of greater than 150°. The analytical approach yielded decent results showing an extra pressure of more than 3 atm averaged from three different scales of two distinct double-undercut designs calculated by the stability equation derived by the Gibbs free energy. Numerical, finite element analysis was also performed in COMSOL-Multiphysics and demonstrated a Canthotaxis wetting transition phenomenon. An average of 800 pascals of additional pressure was achieved for designs of three distinct permutations of double-undercut angles (50°-40°, 50°-36°, and 40°-36°). Specimens were fabricated on silicon wafers by PolyMUMPs method for proof-of-concept and were ready for the future experiment on apparent contact angle and cross-sectional SEM at post breaching the Cassie-Baxter state.

ISBN: 9798368484549Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Hydrophobic

Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications.
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100 1 $a Liu, Zirui. $3 3689279
245 1 0 $a Superhydrophobic and Oleophobic Surfaces. Synthesis and Applications.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 85 p.
500 $a Source: Masters Abstracts International, Volume: 84-08.
500 $a Advisor: Stoilov, V.
502 $a Thesis (M.A.Sc.)--University of Windsor (Canada), 2023.
506 $a This item must not be sold to any third party vendors.
520 $a Surface patterning is an overwhelming approach to mechanically modifying metal surfaces and improving their tribological properties, such as repellency, lower friction, and more excellent corrosion resistance. Patterned surfaces can be applied to various industrial uses, such as cutting tools, submarines, and self-cleaning surfaces. In this paper, the novel nature-inspired flat-top-pillar "double-undercut" designs were proposed to achieve an apparent angle that satisfies super-hydrophobicity and endure higher pressure on which external forces are exerted. The main objective is to enlarge the change in Gibbs free energy for the system to exhibit a heterogeneous wetting to a homogeneous one by excavation on the surface needed to be patterned to obtain an additional 30% of the atmospheric pressure while maintaining an apparent contact angle of greater than 150°. The analytical approach yielded decent results showing an extra pressure of more than 3 atm averaged from three different scales of two distinct double-undercut designs calculated by the stability equation derived by the Gibbs free energy. Numerical, finite element analysis was also performed in COMSOL-Multiphysics and demonstrated a Canthotaxis wetting transition phenomenon. An average of 800 pascals of additional pressure was achieved for designs of three distinct permutations of double-undercut angles (50°-40°, 50°-36°, and 40°-36°). Specimens were fabricated on silicon wafers by PolyMUMPs method for proof-of-concept and were ready for the future experiment on apparent contact angle and cross-sectional SEM at post breaching the Cassie-Baxter state.
590 $a School code: 0115.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Materials science. $3 543314
650 4 $a Automotive engineering. $3 2181195
653 $a Hydrophobic
653 $a Oleophobic
653 $a PolyMUMPs
653 $a Surface patterning
653 $a Double-undercut
690 $a 0548
690 $a 0794
690 $a 0540
710 2 $a University of Windsor (Canada). $b MECHANICAL ENGINEERING. $3 2093247
773 0 $t Masters Abstracts International $g 84-08.
790 $a 0115
791 $a M.A.Sc.
792 $a 2023
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30248109