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A Study on the Microstructure, Rate-Dependent Mechanical Responses, and Failure Mechanisms of a Novel TiAl/Ti3Al-Al2O3 Cermet
DownloadSpring 2020
Detailed characterization and experimental studies have been carried out on a novel self-propagating high-temperature synthesized (γ + α2) – TiAl/Ti3Al-Al2O3 cermet to investigate the microstructure, rate-dependent mechanical response, and rate-dependent failure mechanisms under uniaxial...
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Fall 2020
This thesis develops a time averaged model (TAM) and a dynamic phasor model (DPM) of a generalised modular multilevel converter (MMC) structure that can be used to represent four different MMC topologies. These four topologies include two different classes of next generation MMCs that are...
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Fall 2022
Line Commutated Converter based High Voltage DC (LCC-HVDC) is the dominant technology of HVDC power transmission worldwide. LCC-HVDC has lower cost of implementation and lower power losses, accompanied by higher voltage capabilities and higher power levels, in comparison to Voltage Source...
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Fall 2010
The microstructures and performance of Ni-based alloys and Ni-WC (nickel-tungsten carbide) composite overlays deposited by plasma transferred arc welding have been studied. The Ni-alloy overlays had similar microstructures consisting of Ni dendrites, with interdendritic Ni-based eutectics,...
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Fall 2022
The MMC is the dominant voltage-sourced converter technology for HVDC systems including terrestrial power transmission and offshore wind power integration. It is also a state-of-the-art solution for emerging MVDC applications such as bipolar dc distribution and grid integration of renewable...
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Spring 2018
For over a century, the electric energy generation, transmission, distribution and utilization patterns have been essentially based on Alternating Current (AC), throughout time the AC technologies have been pushed into their thermal and/or technical limitations. The Direct Current (DC)...