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 “"Dispersion Strengthening"”.
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BULK NANOSTRUCTURED STEELS FOR NUCLEAR REACTOR AND EXTREME ENVIRONMENT APPLICATIONS
… times their nominal strength from grain boundary strengthening, and dislocation strengthening. Dynamic recovery was promoted due to ECAP at 520 oC rendering it with a large area fraction of less mobile low angle grain boundaries (LAGBs) which thermally stabilized it up to 500 C, well above the …
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On a class of strain gradient plasticity theories : formulation and numerical implementation
… idealized two-dimensional models of grain-size-strengthening and dispersion-strengthening of metallic materials are also studied using the small deformation version of the isotropic theory. For problems that do not involve boundary conditions on plastic strain, the flow rule may be considered to …
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Friction Consolidation of Oxide Dispersion Strengthened Incoloy ® Alloy Ma956 Powder
… at elevated temperatures thanks to oxide dispersion strengthening.</p> <p>The conventional processing route utilized to obtain this alloy involves two main multistep stages. The first (or front end) stage of the process consists of a dry, high-energy milling process which mixes very fine …
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Effects of crack-crystallite interaction on the fracture behavior of a cordierite glass-ceramic
… equal to the mean free path distance between the dispersions, while at larger flaw sizes, crack deflection around the dispersed crystallites took place. Crack-microstructure interactions were absent in these same samples at flaw sizes less than the mean free path distance, and were not observed at …
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Damping Behavior in Ferroelectric Reinforced Metal Matrix Composites
Ferroelectric-reinforced metal matrix composites (FR-MMCs) show promise as high damping materials for structural applications. Most structural materials are valued based on their stiffness and strength; however, stiff materials typically have limited inherent ability to dampen mechanical or …
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Functionalization and Dispersion Stability Study of Graphene Materials in 2K Urethane Coating System and Expanded Interlayer Spacing of Vanadium Oxide Nanomaterials for Energy Storage Applications
Synthesis and functionalization of nanomaterials has been studied for the application towards energy storage (V₂O₅) or corrosion protection (graphene). We took advantage of the hydrophobic and barrier properties present in graphene through including pristine and functionalized graphene materials in …
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Understanding Ferroelastic Domain Reorientation as a Damping Mechanism in Ferroelectric Reinforced Metal Matrix Composites
Ferroelectric-reinforced metal matrix composites (FR-MMCs) offer the potential to improve damping characteristics of structural materials. Many structural materials are valued based on their stiffness and strength; however, stiff materials typically have limited inherent ability to dampen …
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Development of novel nano-coating applied on metal stencils used in the manufacture of printed circuit boards and similar products
… the synergistic effect of lower grain size and dispersion strengthening. The increase in hardness and lower grain size further influenced nanotribological properties, which were seen to improve with the addition of nanocomposites. The water contact angle of coatings were also analyzed, which was …