Metamaterial development for mechanical interfacial tuning and sensing applications
department or school: Applied Science, Faculty of
department or school: Engineering, School of (Okanagan)
data provider: DSpace
degree campus: UBCO
creator: Azimi Dijvejin, Zahra
issued: 2023-07-12T07:00:00Z
issued: 2023
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Metamaterials are artificially engineered materials with unique properties that are not found in nature. They have potential applications in various fields, and their development has opened up new avenues of research in physics, materials science, and engineering. Here, I designed and fabricated kirigami, a 2D mechanical metamaterial, and microwave sensing metamaterials for applications such as antifouling surfaces and sensors. The combination of the out-of-plane deformation of kirigami structures and the fast, on-demand detection of changes in microwave radiation properties of electrical metamaterials were utilized. This thesis presents two key contributions to the use of metamaterials. First, the development of a suspended kirigami surface, a flexible and deformable mechanical metamaterial that reduces the adhesion strength of various foulants including ice, mud, epoxy adhesive, and wax. Such surfaces can even be applied on complex curved geometries. Second, the investigation of electrical microwave sensors (electrical metamaterials) and their inclusion within coatings that exhibit low interfacial toughness with ice, for smart, hybrid de-icing applications. My work first revealed that both the ice adhesion strength and interfacial toughness of some materials are inversely dependent on temperature. Next, I utilized embedded heaters to modulate the surface temperature and tailor the interface properties of ice on the coating. Moreover, embedded microwave metamaterials were used to detect icing and de-icing accurately, which would help optimize the electrical energy expended during de-icing. Finally, my work explores the combination of electrical and mechanical metamaterials for strain or humidity sensing. Heterogeneous kirigami structures and an array of electrical metamaterials are designed and optimized for strain sensing. The amount of strain applied to the kirigami sheet can be correlated to the response of the electrical metamaterials as they rotate out of plan…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/85239
note: Metamaterial Development for Mechanical Interfacial Tuning and Sensing Applications by Zahra Azimi Dijvejin B.A., The University of Tehran, 2015 M.S., Tarbiat Modares University, 2018 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE COLLEGE OF GRADUATE STUDIES (Mechanical Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Okanagan) July 2023 © Zahra Azimi Dijvejin, 2023 ii The following individuals certify that they have read, and recommend to the College of Graduate Studies for acceptance, the dissertation entitled: Metamaterial Development for Mechanical Interfacial Tuning and Sensing Applications submitted by Zahra Azimi Dijvejin in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Mechanical Engineering Examining Committee: Dr. Kevin Golovin, Faculty of Applied Sciences Supervisor Dr. Alexander Uhl, Faculty of Applied Sciences Co-supervisor Dr. Ian Foulds, Faculty of Applied Sciences Supervisory Committee Member Dr. Mattia Bacca, University of British Columbia – Vancouver Supervisory Committee Member Dr. Isaac Li, Department of Chemistry University Examiner Dr. Guojun Liu, Department of Chemistry, Queen's University External Examiner iii Abstract Metamaterials are artificially engineered materials with unique properties that are not found in nature. They have potential applications in various fields, and their development has opened up new avenues of research in physics, materials science, and engineering. Here, I designed and fabricated kirigami, a 2D mechanical metamaterial, and microwave sensing metamaterials for applications such as antifouling surfaces and sensors. The combination of the out-of-plane deformation of kirigami structures and the fast, on-demand detection of changes in microwave radiation properties of electrical metamaterials were utilized. This thesis presents two key contributions to the use of metamaterials. First, the development of a suspended kirigami…
has type: Thesis/Dissertation
date issued: 2023-09
is shown at: 10.14288/1.0434210
language: eng
degree discipline: Mechanical Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution 4.0 International
rights URI: http://creativecommons.org/licenses/by/4.0/
scholar level: Graduate
contributor: Golovin, Kevin
contributor: Uhl, Alexander R.
type: Text
identifier URI: http://hdl.handle.net/2429/85239