Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"defects in materials"”.
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The mutual influence of strain fields and point defect distributions in krypton implanted polycrystalline titanium
Stress migration of point and open-volume defects in materials is an important problem in a wide variety of applications, such as degradation of metallic interconnects in semiconductor devices, metal fatigue, and radiation damage profiles in ion implantation and surface modification. From a …
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DESCRIPTION OF POLARONS IN LAYERED TRANSITION METAL OXIDES USING THE r2SCAN DENSITY FUNCTIONAL WITH FULLY NONLOCAL CORRECTIONS AND EFFECT OF STRAIN ON THE BAND GAP OF MONOLAYER MOLYBDENUM DISULFIDE
Defects in materials significantly influence their properties and enhance functionality. Hybrid functionals like HSE06, though effective for describing defects, face challenges in geometry optimization for large supercells. The r2SCAN+rVV10+U+Ud method provides a computationally efficient …
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Electron beam generation and structure of defects in carbon and boron nitride nanotubes
The nature and role of defects is of primary importance to understand the physical properties of C and BN single walled nanotubes. Transmission electron microscopy (TEM) is a well known powerful tool to study the structure of defects in materials. However, in the case of SWNTs, the electron …
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Develop Sonic Infrared Imaging Nde For Local Damage Assessment In Civil Structures
<p>Nondestructive Evaluation (NDE) is an interdisciplinary field of study, which is concerned with the development of analysis techniques and measurement technologies for the quantitative characterization of materials, tissues and structures. Ultrasonic IR Imaging is a novel NDE technique, which …
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Discovery of mechanisms and methods for surface-based defect engineering in oxide semiconductors using liquid water
Semiconducting oxides have been used in a wide range of devices, for example as photocatalysts, optoelectronics, and sensors. It is no surprise that readily-controlled manipulation of defect concentrations in oxides could enable the improvement of material properties for many applications and …
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How visual representations affect undergraduate students’ use and understanding of engineering concepts during problem solving
In this two-part thesis, I address gaps in the surface science of semiconductor materials for photovoltaics and discipline-based education research literature. Surface Science of Semiconductor Materials for Photovoltaics With the rise of global energy consumption, it is important to find low-cost, …
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NEUTRON SCATTERING STUDIES OF CRUDE OIL VISCOSITY REDUCTION WITH ELECTRIC FIELD
Small-angle neutron scattering (SANS) is a very powerful laboratory technique for micro structure research which is similar to the small angle X-ray scattering (SAXS) and light scattering for microstructure investigations in various materials. In small-angle neutron scattering (SANS) technique, the …
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Three Grains, Two Photons and a Colourful Diamond
Exploring how light interacts with physical systems is an elegant and powerful way to unravel processes occurring at different scales, from bulk materials to single atoms. In this thesis, we employ several microscopy and spectroscopy techniques to investigate the local optoelectronic properties of …