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 “"in situ transmission electron microscopy (TEM)"”.
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Low Energy Order-To-Disorder Transition Pathways In Phase-Change Nanowires
… transform between the amorphous and crystalline phase within nanoseconds, making it a promising candidate for non-volatile memory (NVM) applications. The conventional method to realize the crystal−amorphous transformation in PCM is to heat the material above its melting point by an electrical …
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Formation and growth of irradiation-induced defect structures in ceria
… are of primary concern for materials used in nuclear energy production. In this study, emphasis was given to the processes of formation and growth of radiation-induced defect structures in oxide fuels. Due to the natural complexity of oxide fuels, which consist of both a metal sublattice …
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Characterizing Plastic Deformation Mechanisms in Metal Thin Films using In Situ Transmission Electron Microscopy Nanomechanics
… smarter and faster devices has motivated continued research into understanding the mechanical behavior of small-scale materials used to create micron-sized features for devices such as flexible or stretchable electronics or micro electromechanical systems (MEMS). Nanocrystalline (NC) and …
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Novel phase and phase transition behavior of a superionic conductor observed on the nanoscale
This dissertation documents the work performed in the pursuit of a PhD degree in the research group of Prof. Prashant K. Jain at the University of Illinois at Urbana-Champaign. I employed in-situ transmission electron microscopy (TEM) for understanding the ionic structure, vacancy ordering, phase …
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Investigating the Effect of Austenite Grain Size and Grain Boundary Character on Deformation Twinning Behavior in A High-Manganese TWIP Steel: A TEM In-Situ Deformation Study
Nanocrystalline metals exhibit a high strength/hardness but generally poor ductility during deformation regardless of their crystal structure which is often called the strengthductility trade-off relationship and generally appears in most ultrafine-grained metals. The ultrafine-grained (UFG) high …
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In situ electron microscopy of nanomaterials dynamics in heterogeneous phase environments
Engineered nanomaterials with desired properties and structures are indispensable to catalyze the processes of reliable energy conversion and storage systems for a sustainable future. These functional nanomaterials often experience dynamic physical and chemical changes during the operating cycles. …
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INVESTIGATION OF PHASE TRANSFORMATIONS IN TRANSITION METAL DICHALCOGENIDES DURING SYNTHESIS AND POST GROWTH
… metal dichalcogenides (TMDCs) are promising candidates for use in beyond-Moore electronics, photovoltaics, sensing, and energy storage devices. The highly anisotropic crystal structure of TMDCs is characterized by chemically active edge sites and relatively inert basal plane layers, which …
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Radiation-induced microstructural and mechanical property modifications in advanced alloys
As part of the solutions towards resolving the challenges in energy shortage and climate changes, advanced nuclear reactor systems are being developed as reliable and sustainable clean energy sources with enhanced energy efficiency and safety features. These improved attributes necessitate advanced …