Index Catalog // ScholarsArchive@OSU

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:: : ______________________________________________________ Melissa K. Santala A Cu/Fe-spinel-based oxygen carrier designed at the National

Characterization of Low Temperature Crystallization Growth Parameters of the Growth-dominated Phase Change Materials: Ge1Sb6Te1 and Ga15Sb85 by Optical Microscopy

Creator:: Winseck, Mark M.
Abstract:: Phase change memory materials are a set of chalcogenide or pnictogenide materials systems currently being researched for use in optical and resistive based memory systems due to their large change in optoelectronic properties between the amorphous and the crystalline states. For these materials systems to be considered as a suitable...
Resource Type:: Masters Thesis
Full Text:: : Melissa K. Santala Phase change memory materials are a set of chalcogenide or pnictogenide materials

Crystallization Rates of AIST and Ge Thin Films by Optical and Electron Microscopy

Creator:: Bird, Victoriea L.
Abstract:: The amorphous to crystalline phase change is of great interest for the production and operation of phase change memory and germanium electronic devices. Phase change memory relies on the ability to differentiate between differences in optical or electrical properties between the amorphous and crystalline phases of a single material. Amorphous...
Resource Type:: Masters Thesis
Full Text:: Microscopy Abstract approved: ______________________________________________________ Melissa K

Design and Testing of the FUEL System: Integrating Engineering and Ethnographic Methods in Global Development Efforts

Creator:: Ventrella, Jennifer L.
Abstract:: Clean cooking technologies and fuels have been cited as a viable way to slow climate change and reduce the health and environmental impacts associated with traditional cooking devices used by 40% of the world. While engineers in the Design for Development sector have created hundreds of stove designs that perform...
Resource Type:: Masters Thesis

Development of Temperature-Stable Relaxor Dielectrics for High Energy Density Capacitor Applications

Creator:: McCue, Connor
Abstract:: High performance dielectric materials are needed for high power SiC- or GaN-based electronics which combine the best features of high energy density, low dielectric loss and high reliability and for advanced high-speed and high-voltage energy storage where temperature stability plays an important role in material properties. An ideal capacitor for...
Resource Type:: Masters Thesis
Full Text:: . The Farad is defined as: 𝐶 = 𝑞 𝑉 where q is the internal charge stored and V is the voltage

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis
Full Text:: field. Finally, the charge of each carrier, 𝑞, completes the conductivity. 𝜎 = 𝑛𝜇𝑞 (1.1

Characterization and Development of Ni-based Superalloys for Supercritical Carbon Dioxide Applications

Creator:: Adam, Benjamin M.
Abstract:: The advent of supercritical CO2 as a new heat-exchange medium has seen strong interest from the power industry and the energy research field recently. It is advan- tageous in comparison with other heat-exchange cycles, as it can be operated safely at much higher temperatures and pressures, thus increasing the thermal...
Resource Type:: Dissertation
Full Text:: troubleshoot and to provide valuable suggestions. Thanks also to my committee members, Dr. Melissa Santala and

Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

Creator:: Teng, Fei
Abstract:: The thermal degradation of structural materials is considered to be a key factor for evaluating the lifetime of current nuclear power plants. Ni-based and Fe-based alloys, such as 690, 625, 304, and 316, are widely used in nuclear industry as structural components due to the extraordinary corrosion resistance and mechanical...
Resource Type:: Dissertation
Full Text:: parameters: k0 = 3.00E+05 h -1, Q = 120 kJ, n = 0.75. .... 38 Figure 3-1. Schematics of ordered MoPt2

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Creator:: Bowen, Michael S.
Abstract:: Determining the electrical properties of ceria-based materials is important for their use as electrodes in hot-wall magnetohydrodynamic (MHD) power generators with wall temperatures greater than 1500 ̊C. The electrical conductivity of a material can be used in models for predicting the performance of generator designs. More specifically, the temperature dependent...
Resource Type:: Dissertation
Full Text:: . Finally, 𝑞 is the magnitude of charge of the carrier in 𝐶 and must be a multiple of the charge of an

Integrating Systemic and Applied Anthropology Approaches to Identify Barriers and Enablers to Accessing Healthcare in the Province of Buenos Aires, Argentina

Creator:: Copple, Ethan L.
Abstract:: Healthcare access exhibits differing levels of complexity, often requiring multi-disciplinary approaches to study its barriers and enablers. Though Argentina has achieved nominal universal healthcare coverage through its public healthcare system, full effective coverage has not been achieved. The public system also has a parallel private care system, adding further complexity...
Resource Type:: Masters Thesis
Full Text:: . Thank you to Dr. Hector Vergara, Dr. Melissa Cheyney, and Dr. Shawn Rowe for serving as members of my

ScholarsArchive@OSU

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

Characterization of Low Temperature Crystallization Growth Parameters of the Growth-dominated Phase Change Materials: Ge1Sb6Te1 and Ga15Sb85 by Optical Microscopy

Crystallization Rates of AIST and Ge Thin Films by Optical and Electron Microscopy

Design and Testing of the FUEL System: Integrating Engineering and Ethnographic Methods in Global Development Efforts

Development of Temperature-Stable Relaxor Dielectrics for High Energy Density Capacitor Applications

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Characterization and Development of Ni-based Superalloys for Supercritical Carbon Dioxide Applications

Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Integrating Systemic and Applied Anthropology Approaches to Identify Barriers and Enablers to Accessing Healthcare in the Province of Buenos Aires, Argentina

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