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20240404ThesisFinalConnorMiller.pdf (1.24 MB)

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Multivariable Dependence And Contributing Factors of Bilayer Graphene Frictional Behavior

Miller, Connor Fitzpatrick Toro
http://orcid.org/0009-0006-7536-2075
http://rave.ohiolink.edu/etdc/view?acc_num=miami1714053244120761

Abstract Details

2024, Master of Science, Miami University, Mechanical and Manufacturing Engineering.
The friction and wear properties of bilayer graphene on silicon substrate with diamond atomic force microscope tip were investigated using molecular dynamic simulation with three independent variables of tip velocity, temperature, and normal load. Based on isolated experimental results, it is determined that graphene friction is velocity, temperature, and normal load dependent. Velocity and normal load increase lead to positive friction correlations while temperature increase leads to negative friction correlations, thus leaving the mechanism to be determined. Combined studies reveal similar results, with each variable maintaining its isolated effect in chorus with the other utilized. Upon obtaining the contact area from these experiments it is evident that velocity and temperature change do not hold direct bearing on the contact area, rather that it is the normal load and size of the sliding surfaces that can fluctuate both contact area and friction in tandem. Hence, the mechanism with respect to velocity and temperature dependence of graphene friction is determined to be variation in interatomic potentials associated with interatomic interactions. Varying the contact area can increase or decrease the quantity of atoms in contact, therefore also having an impact on graphene friction.
Justin Ye (Advisor)
Mark Sidebottom (Committee Member)
Andrew Paluch (Committee Member)
Timothy Cameron (Committee Member)
45 p.
Engineering; Materials Science; Mechanical Engineering
Graphene, Friction, Tribology, Wear, Bilayer Graphene, Atomic Force Microscopy, Lammps, Ovito, Temperature, Normal Load, Velocity, Atomic Potential Model, Lennard-Jones Potential, AIREBO Potential, Contact Mechanics, Contact Area, Hertz Contact Area

Recommended Citations

Citations

  • Miller, C. F. T. (2024). Multivariable Dependence And Contributing Factors of Bilayer Graphene Frictional Behavior [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1714053244120761

    APA Style (7th edition)

  • Miller, Connor. Multivariable Dependence And Contributing Factors of Bilayer Graphene Frictional Behavior. 2024. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1714053244120761.

    MLA Style (8th edition)

  • Miller, Connor. "Multivariable Dependence And Contributing Factors of Bilayer Graphene Frictional Behavior." Master's thesis, Miami University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=miami1714053244120761

    Chicago Manual of Style (17th edition)

miami1714053244120761
176
© 2024, some rights reserved.Creative Commons License Multivariable Dependence And Contributing Factors of Bilayer Graphene Frictional Behavior by Connor Fitzpatrick Toro Miller is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Miami University and OhioLINK.