• Development of aluminum electrorefining in ionic liquids: the effects of experimental conditions on the deposition behavior and microstructure 

  Wang, Yifan (University of Alabama Libraries, 2020)

  The electrochemical refining of Al from aluminum alloy scrap (Al2020) on copper substrate cathode at low temperature ionic liquid electrolytes was studied. The main components of ionic liquid electrolytes were the mixture ...
• Precursor gas comparison for the growth of silicon carbide fibers via laser chemical vapor deposition 

  Matt, Mia Catherine (University of Alabama Libraries, 2020)

  Laser chemical vapor deposition (LCVD) is a processing technique that can be used to grow fibers. In this study, the relationships between deposited SiC fiber composition, fiber microstructure, and fiber mechanical properties ...
• Coating yttria stabilized zirconia powders by magnetron sputtering 

  Togaru, Maanas (University of Alabama Libraries, 2019)

  This thesis describes the application of Physical Vapor Deposition (PVD) for coating powders, with the work motivated by the need to provide conformal coatings for nuclear fuel for use in Nuclear Thermal Propulsion (NTP). ...
• High-temperature corrosion study of alloys in molten MgCl₂-KCl eutectic salt 

  Peng, Yuxiang (University of Alabama Libraries, 2019)

  The MgCl₂-KCl molten salt has been proposed as one of the heat transfer fluids (HTFs) in the solar energy system because of its potential thermal properties. This research investigates the corrosion behavior and protection ...
• Oxidation behavior of refractory complex concentrated alloys: computational and experimental studies 

  Hunter, Brett Matthew (University of Alabama Libraries, 2019)

  In recent years, high entropy alloys (HEAs) and, more specifically, refractory complex concentrated alloys (RCCAs) have been of increased interest due to their potential as replacements in high temperature environments. ...
• Prediction of heat transfer and microstructure in high-pressure die-cast A383 aluminum alloy 

  Karkkainen, Mikko (University of Alabama Libraries, 2019)

  Predicting the microstructure of the as-cast HPDC (high-pressure die cast) product is valuable, because micro-scale features often determine its mechanical properties. To predict the microstructure, the effect of processing ...
• Investigation of influencing factors in liquid metal embrittlement of advanced high strength steel 

  Massie, Daniel Joseph Woodson (University of Alabama Libraries, 2019)

  This thesis explored the influence of temperature, steel type, galvanization method, and macro-strain level on the sensitivity of advanced high strength steels (AHSS) to zinc-based liquid metal embrittlement (LME). It is ...
• Hyperbaric growth of carbon fibers by laser chemical vapor deposition 

  Rife, Justin Lee (University of Alabama Libraries, 2019)

  Laser Chemical Vapor Deposition (LCVD) is a promising new processing technique by which freestanding structures, such as fibers, can be deposited. The deposition of carbon fibers by use of ethylene as a precursor gas can ...
• Experimental and numerical study of the reduction of silica in a thermal plasma reactor 

  Li, Yudong (University of Alabama Libraries, 2019)

  High purity silicon production is impeding the expansion of solar energy industry due to high cost. Using high purity SiO2 and carbon, it is possible to economically produce solar grade silicon through two-step process ...
• Advanced characterization of the oxidation behavior of grain refined NiAl 

  White, Rachel Ellen (University of Alabama Libraries, 2019)

  Reactive element doped β-NiAl is one of the most oxidation resistant materials available for high temperature use. It has been extensively studied to create the most adherent, slow growing, and passive layer possible. One ...
• Processing-microstructure-property relations in high pressure cold spray of AA2024 and AA7075 

  Story, William Andrew (University of Alabama Libraries, 2018)

  In this dissertation work, the processing-microstructure-property relations are examined for cold spray deposited AA2024 and AA7075. Unlike traditional thermal spray technologies, powders are never melted during the cold ...
• Phase equilibria and reaction kinetics of borides based high-temperature thermoelectric materials 

  Imam, Muhammad Ali (University of Alabama Libraries, 2018)

  In this study, the phase equilibria of the binary borides (Mg-B and Si-B) were determined by solid-state electrochemical measurements. This study provides the equilibrium thermodynamic properties of boride based thermoelectric ...
• Pulsed laser deposited epitaxial oxide thin films for microwave and spintronics applications 

  Singh, Amit V. (University of Alabama Libraries, 2018)

  Oxides are an important class of materials exhibiting properties useful in the modern technological applications. A wide range of oxides are inherently stable, both chemically and thermodynamically. Some members of the ...
• Processing-microstructure relationships in Al-Cu alloys produced by the cold spray deposition process 

  Liu, Tian (University of Alabama Libraries, 2018)

  This dissertation investigates the processing-microstructure relationships during cold spray deposition of binary aluminum-copper alloys. While cold spray has been successfully applied using a variety of engineering alloys, ...
• Correlation between heat input and residual stresses from friction stir welding of AA5052 plate 

  Zhu, Ning (University of Alabama Libraries, 2018)

  This thesis investigates the connections between friction stir welding (FSW) parameters, simple energy/heat input metrics, and the resultant residual stresses on AA5052-H32 plates. A range of weldments were produced with ...
• Phase stability and deformation behavior of nanostructured copper based multilayers 

  Guo, Qianying (University of Alabama Libraries, 2018)

  As metallic multilayers exhibit large surface area-to-volume ratios, their physical and chemical properties can be size dependent. These size dependent changes facilitate both crystallographic phase transformations as well ...
• Investigation of liquid metal embrittlment in advanced high strength steels 

  Briant, Nathaniel P. (University of Alabama Libraries, 2018)

  This thesis explored the susceptibility of ferritic/bainitic, advanced high strength steels to zinc-based liquid metal embrittlement (LME). The understanding of the causes and effects of LME is critical because of the ...
• Magnetic properties and structure of Mn-x alloy thin films 

  Zhao, Siqian (University of Alabama Libraries, 2018)

  Among the rare earth free/less permanent magnet candidates, the L10 MnAl, L10 MnGa and D022 Mn3-δGa (δ=0~1) exhibit high magnetic anisotropy energy, which is of the order of 10^7 erg/cm3, despite the spin orbit coupling ...
• Multi-scale modeling of spatial heterogeneity effect on the shear banding behaviors in metallic glasses 

  Wang, Neng (University of Alabama Libraries, 2018)

  Stronger than steels but able to be shaped and molded like plastics, the mechanical properties of metallic glasses (MGs) are proven to be scientific interest and potential applications in industry. However, MGs suffer from ...
• Relating processing-microstructure-mechanical properties of inconel 718 fabricated by selective laser melting 

  Holland, Sharniece (University of Alabama Libraries, 2018)

  Selective laser melting (SLM), uses a computer controlled scanning beam to selectively melt pre-spread powders in a layer by layer fashion. SLM has become a powerful tool to fabricate Inconel 718 due to the ability to ...

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