Mechanical Engineering ETDs

Publication Date

Spring 4-23-2023

Abstract

This project will design, fabricate, and test a magnetoelastic nickel-iron-cobalt alloy resonator for ground fault detection applications, specifically in photovoltaic systems. The electrodeposition technique will be used to fabricate the proposed resonator as it enables a precise manufacturing process. It allows for better control and optimization of material properties (magnetic, mechanical, and electrical) while facilitating the necessary dimensions. A great deal of study and experimentation will go into the electrolyte development when dealing with challenges like intrinsic stress and surface defects within the film. Hull cell analysis will be done to study the composition of the material in different electrochemical settings. Cyclic voltammetry studies will be conducted to provide insight into the different reaction mechanisms in the electrolyte during the electroplating process. For device testing, several measurements will be conducted to assess its performance as a resonator. These include testing the material's magnetostriction, resonant frequency response, and mechanical properties. COMSOL models will relate resonator performance to material properties, such as Young's modulus and electrical resistivity. The results presented in this study will be implemented on patterned resonator devices and employed on PV units for further testing.

Keywords

Resonator, Electrodeposition, Magnetoelastic, Nickel-Iron-Cobalt

Degree Name

Mechanical Engineering

Level of Degree

Masters

Department Name

Mechanical Engineering

First Committee Member (Chair)

Dr. Sakineh Chabi

Second Committee Member

Dr. Jamin Pillars

Third Committee Member

Dr. Yu Lin Shen

Document Type

Thesis

Comments

Resubmitting for further review

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