Index Catalog // ScholarsArchive@OSU

Quasicrystal Formation, Structure and Indentation Behaviors in Pure Tantalum

Creator:: Wang, Zhengming
Abstract:: Spontaneous quasicrystal (QC) formation has not been observed in pure metals either in computation or in experiments (excluding epitaxial growth of thin atomic layers on a QC template). In this thesis work, dodecagonal QC (DDQC) grains are first discovered to spontaneously form during thermal devitrification of pure tantalum (Ta) metallic...
Resource Type:: Masters Thesis
Full Text:: ). https://doi.org/10.1063/5.0032991) 3.1 Simulation Methods 3.1.1 Sample Preparation The Ta samples

Molecular Dynamics Study of structural Evolution, Tensile Deformation and Nanoindentation of Monatomic Metallic Glasses

Creator:: Chen, Fangzheng
Abstract:: Metallic glasses are attracting tremendous attention because of their fundamental significance and great potential to be used as structural or functional materials in engineering applications. Significant efforts have been devoted to studying their unique properties as well as their disordered nature. Metallic glasses possess much higher strength and elastic strain...
Resource Type:: Masters Thesis

Light soaking in metal-halide perovskites

Creator:: Watts, C. Lowell
Abstract:: Despite climate change requiring the cutback of fossil fuel consumption, the world continues to increase its energy demands each year. To meet the ambitious goals outlined during the Paris Agreement in 2015, which set a goal to limit global warming to 1.5°C [1], changes in energy production methods are necessary....
Resource Type:: Dissertation

Potential Additive-Manufacturing of Ablative Thermal Protection Systems

Creator:: Hazell, Kenya K.
Abstract:: Electrodeposition is a versatile polymer deposition technique to create nano-microscale materials using an electrical field generated from a charged droplet of solution and a grounded collector. Electrospinning or electrospraying can occur during electrodeposition, leading to the creation of nanofibers or bead-like materials depending on the process parameters. Photopolymerization of the...
Resource Type:: Dissertation

The Conduction Properties of Heavily Acceptor Doped Lead Zirconate Titanate Ceramics

Creator:: Sangwan, Vyomika
Abstract:: Heavily acceptor doped Pb1.02Dx(Zr0.5Ti0.5)1-xO3 ceramics, where A is the dopant, were investigated in this research. Dopants studied included iron, magnesium and manganese at mole concentrations x ≤ 0.20. X-ray diffraction data along with scanning electron microscopy images revealed the solubility limits of these ceramics. All doped compositions exhibited a shift...
Resource Type:: Masters Thesis

Magnetic Properties of Polymer Nanocomposite Materials Prepared using Multi Jet Fusion 3D Printing Methods

Creator:: Cannamela, Madeleine G.
Abstract:: The goal of this research was to explore if an inkjet 3D printing technology, known as Multi Jet Fusion (MJF), could be used to fabricate magnetic polymer nanocomposites with systematically varied volume fractions of magnetic nanoparticles. Soft magnetic nanoparticles were chosen because of their applications in communications technologies and other...
Resource Type:: Masters Thesis

Oxidation of Amorphous Metal Alloy Surfaces Studied Using Ambient Pressure X-Ray Photoelectron Spectroscopy

Creator:: Alzaga Elizondo, Pedro
Abstract:: Amorphous metal thin films (AMTFs) are of growing interest due to their unique mechanical properties and chemical stability. AMTFs have an advantage over polycrystalline metal films due to the lack of grain boundaries which gives AMTFs added durability and relatively smoother surfaces. For this reason, AMTFs have been investigated as...
Resource Type:: Masters Thesis

Point Defects and Impurities Adapted Phonon Thermal Properties of Zirconium Diboride: It's Influence on Thermal Conductivity, Thermal Expansion and Specific Heat

Creator:: Ighere, Jude Ogheneyoreme
Abstract:: The study outlined in this dissertation elucidate the thermal and structural properties of ZrB2 based ceramics as choice materials for high temperature applications. Thermal properties were investigated to improve understanding on aspects that are affected by point defects and impurities at nanoscale and electron level using a combination of lattice...
Resource Type:: Dissertation

Characterization and theoretical analysis of the effect of geometry on electrical characteristics of flexible thin film transistors

Creator:: Chattopadhyay, Shirsopratim
Abstract:: Flexible Electronics is a fast developing technology that is set to revamp and revolutionize conventional electronics through the development of devices that are easily conformable to surfaces of any arbitrary geometry. Such devices would have vast applications in areas where the rigidity of traditional silicon based electronics is undesirable, such...
Resource Type:: Dissertation

Acceleration of Long-Range Ordering in NiCrFe Alloys Via Proton Irradiation

Creator:: Evered, Cole E.
Abstract:: This work explores the hypothesis that proton irradiation is a feasible alternative to simulate accelerated thermal aging for Ni2Cr long-range ordered phase formation within NiCr and NiCrFe alloys. In this study, various model alloys and commercial alloys 690 and 690+P (0.01 wt.% P) were subject to 2 MeV proton irradiation...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Quasicrystal Formation, Structure and Indentation Behaviors in Pure Tantalum

Molecular Dynamics Study of structural Evolution, Tensile Deformation and Nanoindentation of Monatomic Metallic Glasses

Light soaking in metal-halide perovskites

Potential Additive-Manufacturing of Ablative Thermal Protection Systems

The Conduction Properties of Heavily Acceptor Doped Lead Zirconate Titanate Ceramics

Magnetic Properties of Polymer Nanocomposite Materials Prepared using Multi Jet Fusion 3D Printing Methods

Oxidation of Amorphous Metal Alloy Surfaces Studied Using Ambient Pressure X-Ray Photoelectron Spectroscopy

Point Defects and Impurities Adapted Phonon Thermal Properties of Zirconium Diboride: It's Influence on Thermal Conductivity, Thermal Expansion and Specific Heat

Characterization and theoretical analysis of the effect of geometry on electrical characteristics of flexible thin film transistors

Acceleration of Long-Range Ordering in NiCrFe Alloys Via Proton Irradiation

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