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Showing 1 to 15 of 15 for “"Microstructure Characterization"”.
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Microstructure characterization of foamed cement and concrete
Freeze-thaw deterioration of concrete is a major durability issue in cold climates. Air-entraining admixtures are used to create a network of fine bubbles that enhance frost resistance. Experience has shown that fresh air content alone cannot predict the effectiveness of the entrained air system. …
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Microstructure Characterization of SUS444 Ferritic Stainless Steel
… is directly related to the influence of microstructure on high temperature strength and the stability of the microstructure at the high operating temperature range. The goal of this research is to identify the cause for the drastic difference in the stress-strain behavior between two …
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Design optimization of heterogeneous microstructured materials
… limited by our capacity to tailor the material’s microstructure morphology and predict resulting properties. The insufficient knowledge on microstructure-property relationship is due to complexity and randomness in all materials at different scales. The objective of this research is to establish a …
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Thermoelectric characterization of one- and two- dimensional materials
… could be further tuned by modifying their microstructure to achieve higher zTs. To achieve such material tuning in a controlled fashion, it is necessary to understand the physical mechanisms that govern the relationships between a material's microstructure and its thermoelectric properties. …
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Interação do hidrogênio com a microestrutura dos aços inoxidáveis supermartensíticos sob regime elástico
… studied the interaction of hydrogen with the microstructure of the Super 13Cr steel under elastic loading. For the purpose of this work, hydrogen study, microstructure characterization and uniaxial tension tests (especially with hydrogenated samples under uniform stress) were made …
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Investigating the origin of localized plastic deformation in nanoporous gold by in situ electron microscopy and automatic structure quantification
… AQUAMI increased the efficiency and accuracy of characterization in this work, allowed for the conduction of more experiments, and provided better confidence in morphology and size distribution of the complex NPG microstructural features. Nanoporous gold was synthesized while varying numerous …
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Additively Manufacturing High-Performance, Low-Cost Electrospray Ion Sources for Point-of-Care Mass Spectrometry
… conventional paper spray and coated blade spray. Microstructure characterization with scanning electron microscopy shows reproducible microfabrication of bulk techniques and compatibility with additive manufacturing feedstock. Geometrically and electro-fluidically optimized electrospray emitters …
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High throughput prototyping and multiscale indentation characterization of metallic alloys
… sample prototyping, testing methods, and microstructure characterization techniques. In addition, the hierarchical multiscale structure of advanced materials holds the key to improving their performance characteristics. In order to understand and characterize microscale constituents, and …
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Mechanisms for intrinsic stress evolution during and after polycrystalline film growth
… and lead to complex co-evolution of the surface, microstructure and intrinsic stress of the films. Here we present a comprehensive study consisting of in situ stress measurements, microstructure characterization, and analytical modeling for various polycrystalline systems. We find that in systems …
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Effect of Surface Moisture Condition on Substrate-Repair Concrete Overlay Transition Zone
… moisture condition can significantly impact the microstructure characterization of the OTZ. If the substrate is too dry, then it may absorb water from the repair material, reducing the local water-to-cement (w/c) ratio in the OTZ. Conversely, if the substrate is too wet, then the w/c ratio of the …
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Fabrication And Characterization Of Solid Oxide Cells for Energy Conversion and Storage
… SOCs (MT-SOCs) fabrication methods,</p> <p>Microstructure characterization of the button and micro-tubular SOCs,</p> <p>Electrochemical properties and durability of the button and micro-tubular SOCs in electrolysis and fuel cell mode.</p> <p>The research work on SOCs that can be operated …
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Response of chromium and chromium-aluminum coatings on zircaloy-2 to high temperature steam
… is to characterize the oxidation kinetics and microstructure of CrAl and Cr coatings on Zircaloy-2 in high temperature steam (HTS) environment, and to provide information regarding its functionality during off-normal transient in light water reactors. Pure Cr coating and CrAl coatings with …
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Exploring the Stochastic Performance of Metallic Microstructures With Multi-Scale Models
… lead to material waste. Therefore, computational microstructure reconstruction methods that predict the large-scale evolution of microstructural topology given the small-scale experimental information are developed to minimize experimental cost and time. However, it is important to verify the …
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New processes in aluminium alloys
L'abstract è presente nell'allegato / the abstract is in the attachment
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Gel Development Using Cellulose Nanocrystals
Cellulose Nano Crystal (CNC) are naturally derived nanoparticles with a slender shape that own a remarkably high aspect ratio. Due to its mechanical properties with Young modulus in the range of 120-160 GPa and proven biocompatibility, CNC is an attractive nanoparticle for many applications. In the …