Mines Theses & Dissertations
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Microstructural evolution of intercritically annealed medium-manganese steels
Intercritical annealing (IA) of medium-Manganese (Mn) steels is an AHSS design concept for the production of formable sheet steel. The microstructure after IA includes retained austenite (5-40 volume pct), which forms from ... -
In-situ studies of strain rate effects on phase transformation and microstructural evolution in metastable β titanium alloys
Titanium (Ti) alloys are heavily utilized in the aerospace and defense industries for their high specific strength. Ti alloys are promising candidates for lightweight crash and blast resistant structural applications. ... -
Design and synthesis of organic and hybrid materials for application in lighting, gas storage, and catalysis
The need for new materials and technological advances for an ever-changing world is paramount. Currently, one of the largest areas of change is the energy sector, from how it is produced, stored, and finally utilized; all ... -
Exceeding the biochemical speed limit of fibrinolysis using magnetically powered microwheels
The biochemical lysis of blood clots, or thrombolysis, using tissue plasminogen activator (tPA) is an effective treatment option for some types of clots, but its use has been limited by its rate of transport to and dissolution ... -
Use of waterborne automotive paint sludge as an alternative binder for magnetite ore pellets, The
Due to environmental and economic concerns, there has been a large push to investigate recycling applications for automotive paint sludge. Automotive paint sludge is considered a nuisance and hazardous waste material ... -
Sedimentology of bottom current processes and their bedforms, The
This doctoral thesis (this work) is aimed at better understanding ocean bottom current processes and their bedforms in the contexts of 1) ancient outcrops, 2) modern oceans and 3) geophysical bedform processes. First, ... -
Fluid-fluid interaction in shallow hydrothermal systems: implications to silica vein textures in epithermal deposits
Epithermal deposits are an important source of precious metals that form at shallow depth by subaerial hydrothermal systems. This study aimed to unravel the processes that result in the formation of high grades in these ... -
Development of novel six-dimensional anisotropic and asymmetric yield approaches applied to the study of dwell fatigue using various x-ray techniques, The
In an ever increasingly technological world, it is frequently the case that as industries search for solutions to problems of light-weighting, high-temperature applications, biocompatibility, and cost, they turn towards ... -
Controls on the formation of disseminated- and vein-style low-sulfidation epithermal precious metal deposits
Low-sulfidation epithermal deposits are major sources of Au and Ag. They form in the shallowsubsurface (<1.5 km) from near-neutral chloride waters at <300°C. The ore-forming waters are rock- buffered and have a low salinity ... -
Design, implementation and interpretation of algorithms to predict the progression of Alzheimer's disease
Alzheimer's Disease (AD) is a serious public health issue that results in significant social and financial burdens on the individuals and communities impacted. In order to tackle this public health crisis it is critical ... -
Role of nitrogen in the structure and properties of proton irradiated 12Cr1MoWV ferritic/martensitic steel for advanced nuclear reactor cores, The
The 12Cr1MoWV (wt%) ferritic/martensitic steel HT9 is a candidate material for fuel cladding in advanced nuclear reactors, such as the Versatile Test Reactor, currently under development. As such, understanding the ... -
Comprehensive modeling of process-molten pool condition-property correlations for wire-feed laser additive manufacturing
Wire-feed laser additive manufacturing (WLAM) is gaining wide interest due to its high level of automation, high deposition rates, and good quality of printed parts. The complexity of modeling the directed energy deposition ... -
From tree to tap: the impacts of climate change on biogeochemical processes during conifer needle decomposition and broader implications for water quality in Colorado
Recent climate change has contributed to large-scale tree mortality across forested regions in Colorado. As forest health declines, concern for associated terrestrial biogeochemical and hydrologic shifts is mounting. These ... -
Morphological and microstructural evolution in BZY/Ni catalyst materials
Yttria doped barium zirconate (BZY, BaZr 1-xYxO3-δ) is of interest for its potential uses as a catalyst and in protonic ceramic fuel cells. BZY is often doped with transition metals, such as Ni, which can form into metallic ... -
Advances in spatial frequency modulation imaging: spatio-spectral encoding
In the following thesis I present my work advancing the state of the art in spatial frequency modulation imaging (SPIFI). There are many imaging scenarios in which traditional segmented detectors are impractical. Segmented ... -
Optimal design and control of cool thermal energy storage as a distributed energy resource
The electric grid of the future is envisioned to be a smart grid, where electricity ismanaged in coordinated manner between suppliers and users. To achieve this, a high level of electric demand flexibility must be integrated ... -
Semi-analytic time-domain solutions to wave-scattering problems
Scattered waves are constructed in the time domain by explicitly evaluating the inverse Laplace transform integral as a summation of complex residues. The method is applied to two problems: a bead on a semi-infinite string ... -
Control of optoelectronic properties via aliovalent disorder in ternary nitrides and oxynitrides
The III-V family of semiconductor compounds have revolutionized optoelectronics. From record-efficiency GaAs solar cells to the GaN-based light-emitting diodes that won the 2014 Nobel Prize, these compounds and alloys have ... -
Optimization and data-driven methods for signal processing
By exploiting and leveraging the intrinsic properties of the observed signal, many signal processing and machine learning problems can be effectively solved by transforming them into optimization problems, which constitutes ... -
Influence of reaction synthesis feedstocks on solidification defect formation and microstructure-property relationships in electron beam freeform fabrication of aluminum metal matrix composites
High-strength wrought aluminum alloys are extensively used in aerospace and automotive applications for their high strength-to-weight ratios. Further improvements to properties, including specific modulus, can be achieved ...
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