Index Catalog // ScholarsArchive@OSU

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Creator:: Mendez, Jose Eduardo
Abstract:: The ternary system (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ (BNT-BKT-BMgT) was explored along the [75-(x 2) ]Bi₀.₅Na₀.₅TiO₃ - [25-(x 2)]Bi₀.₅K₀.₅TiO₃ - [x]Bi(Mg₀.₅Ti₀.₅)O₃ composition line. Thin films were fabricated using chelated mixing route solutions spin cast onto platinized silicon substrates. Processing parameters such as: excess cation molar%, solution molality, and crystallization temperatures, for composition where x=0,...
Resource Type:: Masters Thesis
Full Text:: -(Bi0.5K0.5)TiO3-Bi(Mg0.5Ti0.5)O3 (BNT-BKT-BMgT) was explored along the [75−x2 ]Bi0.5Na0.5TiO3 - [25− x 2

In-Situ Confocal Scanning Laser Microscopy and Post-Exposure Analysis of a Cu/Fe-based Oxygen Carrier Material in High-Temperature Oxidation and Reduction Environments for Chemical Looping Combustion Applications

Creator:: Nealley, W. H. Harrison
Abstract:: A Cu/Fe-spinel-based oxygen carrier designed at the National Energy Technology Laboratory was studied in order to characterize its physical and chemical behavior with cyclic oxidation and reduction treatments at 800°C for applications in chemical looping combustions. Observations were made on individual particles of the oxygen carrier in-situ using a confocal...
Resource Type:: Masters Thesis
Full Text:: analysis in the form of x-ray diffraction and scanning electron microscopy with energy-dispersive x-ray

Growth, Characterization, and Application of Antimony Sulfide Thin Films via a Novel Microreactor Assisted Nanomaterial Deposition for Solid State Batteries

Creator:: Chun, Bryan H.
Abstract:: The continuous development of higher performing battery materials has emerged in parallel with the development of new manufacturing processes. Nanomaterials are one solution to addressing the cycling and performance challenges that limit existing battery cells. However, many of the methods used today for nanomaterial synthesis are high temperature batch methods...
Resource Type:: Masters Thesis
Full Text:: , stylus profilometry, x-ray diffraction (XRD), and energy-dispersive x-ray spectroscopy (EDX

Chemical Solution Deposition and in-situ Structural Characterization of Pb-free, Bi-based, Piezoelectric Thin Films

Creator:: Fox, Austin J.
Abstract:: This work explores the electric field induced strain mechanisms in environmentally benign Bi0.5Na0.5TiO3 (BNT) based piezoelectric thin films. Although BNT-based materials show promise as replacements for toxic Pb-based piezoelectrics, the displacement mechanisms are not consistent between thin films and bulk materials, and the differences have yet to be well understood....
Resource Type:: Dissertation
Full Text:: , in-situ structural characterization (2-dimensional X-Ray Diffraction (XRD2)) under applied field

Characterization of Heterostructured Nanocrystalline Metals Processed by High-Pressure Torsion

Creator:: Han, Jae-Kyung
Abstract:: High-pressure torsion (HPT) is an effective severe plastic deformation (SPD) technique to produce bulk nanostructured materials (BNMs). These BNMs often show a combination of exceptional mechanical and physical properties. Processing of single metals and alloys by HPT has been understood that the homogenous microstructures can be achieved throughout the disk...
Resource Type:: Dissertation
Full Text:: intermetallic compound and an Al-Mg alloy by lab-scale X-ray diffraction (XRD) measured at different surface

Effect of Laser Powder Bed Fusion Parameters and Hot Isostatic Pressing on the Microstructure and Mechanical Properties of C22 Alloy

Creator:: Yan, Dongqing
Abstract:: A nickel-based Hastelloy C22 powder with a nominal composition of Ni-21.30Cr-13.36Mo-1.92Co-2.94W-3.85Fe-0.23Mn-0.3V(wt%) and particle size distribution of D₁₀=23.8±0.3 μm, D₅₀=37.5±0.2μm, and D₉₀=59.3±1.1 μm was gas atomized to be used as a feedstock in Laser Powder Bed Fusion (LPBF). In this study, laser power and scanning speed were optimized to manufacture specimens...
Resource Type:: Masters Thesis
Full Text:: microscope, X-ray diffraction, scanning electron microscopy, and electron backscatter diffraction

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

Creator:: Doyle, Ryan P.
Abstract:: High Entropy Alloys (HEA) exhibit unusual properties and are gaining interest as new materials for challenging applications in the aerospace, hypersonic and medical fields. The application of HEAs have been limited by the development of powder production at scale. A recently developed process of plasma spheroidization by 6K, inc. has...
Resource Type:: Masters Thesis
Full Text:: cellular substructures. Energy dispersive X-ray spectroscopy revealed a single ferritic phase of the as

Multi-modal sensing data fusion for machining and additive manufacturing

Creator:: Fu, Xianzhe
Abstract:: With the increased demand for high-quality products, reliable and robust process monitoring has become a key capability for modern manufacturing systems. Through sensors installed in the machinery, the real-time information was measured to assess the state of the processes. The measured data can be used to infer the mechanical, material,...
Resource Type:: Dissertation
Full Text:: on a commercial L-PBF platform with a high-speed IR sensor. Ex-situ X-ray CT scanning was employed

Data-Driven Environmentally Sustainable Product Design: A Shift Toward Increased use of Sustainable Design Activities in the Early Design Phase

Creator:: Ferrero, Vincenzo J.
Abstract:: Modern product design drives the boundaries of innovation by encompassing complex Design-for-X objectives, and the inclusion of multidimensional stakeholders. This growing complexity in product design has left design teams unequipped, as classical design theory is bounded by designer experience, expertise, and cognition. One novel approach to tackling product complexity is...
Resource Type:: Dissertation
Full Text:: drives the boundaries of innovation by encompassing complex Design-for-X objectives, and the inclusion of

A Text-based Simulation Framework for the Automated Simulation and Analysis of Manufacturing Assembly Systems

Creator:: Fields, Benjamin G.
Abstract:: The rapid advancement of manufacturing has led to the creation of a myriad of technologies that facilitate the analysis and simulation of manufacturing processes. These technologies have become a pivotal component in maintaining and improving processes in today’s complex manufacturing environments. Discrete Event Simulation (DES) is one such technology that...
Resource Type:: Masters Thesis
Full Text:: for LED televisions. Similarly, Zheng et al. (2014) developed an integrated analytics system to

ScholarsArchive@OSU

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

In-Situ Confocal Scanning Laser Microscopy and Post-Exposure Analysis of a Cu/Fe-based Oxygen Carrier Material in High-Temperature Oxidation and Reduction Environments for Chemical Looping Combustion Applications

Growth, Characterization, and Application of Antimony Sulfide Thin Films via a Novel Microreactor Assisted Nanomaterial Deposition for Solid State Batteries

Chemical Solution Deposition and in-situ Structural Characterization of Pb-free, Bi-based, Piezoelectric Thin Films

Characterization of Heterostructured Nanocrystalline Metals Processed by High-Pressure Torsion

Effect of Laser Powder Bed Fusion Parameters and Hot Isostatic Pressing on the Microstructure and Mechanical Properties of C22 Alloy

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

Multi-modal sensing data fusion for machining and additive manufacturing

Data-Driven Environmentally Sustainable Product Design: A Shift Toward Increased use of Sustainable Design Activities in the Early Design Phase

A Text-based Simulation Framework for the Automated Simulation and Analysis of Manufacturing Assembly Systems

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