FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2462677943> ?p ?o ?g. }

• W2462677943 abstract "Metallic glasses (MGs) are a relatively new class of materials discovered in 1960and lauded for its high strengths and superior elastic properties. Three major obstaclesprevent their widespread use as engineering materials for nanotechnology andindustry: 1) their lack of plasticity mechanisms for deformation beyond the elasticlimit, 2) their disordered atomic structure, which prevents effective study of theirstructure-to-property relationships, and 3) their poor glass forming ability, whichlimits bulk metallic glasses to sizes on the order of centimeters. We focused onunderstanding the first two major challenges by observing the mechanical propertiesof nanoscale metallic glasses in order to gain insight into its atomic-level structureand deformation mechanisms. We found that anomalous stable plastic flow emergesin room-temperature MGs at the nanoscale in wires as little as ~100 nanometerswide regardless of fabrication route (ion-irradiated or not). To circumvent experimentalchallenges in characterizing the atomic-level structure, extensive moleculardynamics simulations were conducted using approximated (embedded atommethod) potentials to probe the underlying processes that give rise to plasticity innanowires. Simulated results showed that mechanisms of relaxation via the samplefree surfaces contribute to tensile ductility in these nanowires. Continuing with characterizingnanoscale properties, we studied the fracture properties of nano-notchedMGnanowires and the compressive response of MG nanolattices at cryogenic (~130K) temperatures. We learned from these experiments that nanowires are sensitiveto flaws when the (amorphous) microstructure does not contribute stress concentrations,and that nano-architected structures with MG nanoribbons are brittle at lowtemperatures except when elastic shell buckling mechanisms dominate at low ribbonthicknesses (~20 nm), which instead gives rise to fully recoverable nanostructures regardlessof temperature. Finally, motivated by understanding structure-to-propertyrelationships in MGs, we studied the disordered atomic structure using a combinationof in-situ X-ray tomography and X-ray diffraction in a diamond anvil celland molecular dynamics simulations. Synchrotron X-ray experiments showed theprogression of the atomic-level structure (in momentum space) and macroscale volumeunder increasing hydrostatic pressures. Corresponding simulations providedinformation on the real space structure, and we found that the samples displayedfractal scaling (rd ∝ V, d < 3) at short length scales (< ~8 A), and exhibited acrossover to a homogeneous scaling (d = 3) at long length scales. We examinedthis underlying fractal structure of MGs with parallels to percolation clusters anddiscuss the implications of this structural analogy to MG properties and the glasstransition phenomenon." @default.
• W2462677943 created "2016-07-22" @default.
• W2462677943 creator A5087711382 @default.
• W2462677943 date "2016-01-01" @default.
• W2462677943 modified "2023-09-27" @default.
• W2462677943 title "Atomic-Level Structure and Deformation in Metallic Glasses" @default.
• W2462677943 doi "https://doi.org/10.7907/z95q4t2b." @default.
• W2462677943 hasPublicationYear "2016" @default.
• W2462677943 type Work @default.
• W2462677943 sameAs 2462677943 @default.
• W2462677943 citedByCount "0" @default.
• W2462677943 crossrefType "dissertation" @default.
• W2462677943 hasAuthorship W2462677943A5087711382 @default.
• W2462677943 hasConcept C112950240 @default.
• W2462677943 hasConcept C121332964 @default.
• W2462677943 hasConcept C123266363 @default.
• W2462677943 hasConcept C136478896 @default.
• W2462677943 hasConcept C149635348 @default.
• W2462677943 hasConcept C149912024 @default.
• W2462677943 hasConcept C15744967 @default.
• W2462677943 hasConcept C159985019 @default.
• W2462677943 hasConcept C171250308 @default.
• W2462677943 hasConcept C185592680 @default.
• W2462677943 hasConcept C192562407 @default.
• W2462677943 hasConcept C204366326 @default.
• W2462677943 hasConcept C205539056 @default.
• W2462677943 hasConcept C2776029896 @default.
• W2462677943 hasConcept C2776512210 @default.
• W2462677943 hasConcept C2780026712 @default.
• W2462677943 hasConcept C41008148 @default.
• W2462677943 hasConcept C45206210 @default.
• W2462677943 hasConcept C56052488 @default.
• W2462677943 hasConcept C58312451 @default.
• W2462677943 hasConcept C62520636 @default.
• W2462677943 hasConcept C66823137 @default.
• W2462677943 hasConcept C74214498 @default.
• W2462677943 hasConcept C77066764 @default.
• W2462677943 hasConcept C77805123 @default.
• W2462677943 hasConcept C79186407 @default.
• W2462677943 hasConcept C8010536 @default.
• W2462677943 hasConcept C87976508 @default.
• W2462677943 hasConceptScore W2462677943C112950240 @default.
• W2462677943 hasConceptScore W2462677943C121332964 @default.
• W2462677943 hasConceptScore W2462677943C123266363 @default.
• W2462677943 hasConceptScore W2462677943C136478896 @default.
• W2462677943 hasConceptScore W2462677943C149635348 @default.
• W2462677943 hasConceptScore W2462677943C149912024 @default.
• W2462677943 hasConceptScore W2462677943C15744967 @default.
• W2462677943 hasConceptScore W2462677943C159985019 @default.
• W2462677943 hasConceptScore W2462677943C171250308 @default.
• W2462677943 hasConceptScore W2462677943C185592680 @default.
• W2462677943 hasConceptScore W2462677943C192562407 @default.
• W2462677943 hasConceptScore W2462677943C204366326 @default.
• W2462677943 hasConceptScore W2462677943C205539056 @default.
• W2462677943 hasConceptScore W2462677943C2776029896 @default.
• W2462677943 hasConceptScore W2462677943C2776512210 @default.
• W2462677943 hasConceptScore W2462677943C2780026712 @default.
• W2462677943 hasConceptScore W2462677943C41008148 @default.
• W2462677943 hasConceptScore W2462677943C45206210 @default.
• W2462677943 hasConceptScore W2462677943C56052488 @default.
• W2462677943 hasConceptScore W2462677943C58312451 @default.
• W2462677943 hasConceptScore W2462677943C62520636 @default.
• W2462677943 hasConceptScore W2462677943C66823137 @default.
• W2462677943 hasConceptScore W2462677943C74214498 @default.
• W2462677943 hasConceptScore W2462677943C77066764 @default.
• W2462677943 hasConceptScore W2462677943C77805123 @default.
• W2462677943 hasConceptScore W2462677943C79186407 @default.
• W2462677943 hasConceptScore W2462677943C8010536 @default.
• W2462677943 hasConceptScore W2462677943C87976508 @default.
• W2462677943 hasLocation W24626779431 @default.
• W2462677943 hasOpenAccess W2462677943 @default.
• W2462677943 hasPrimaryLocation W24626779431 @default.
• W2462677943 hasRelatedWork W1886455663 @default.
• W2462677943 hasRelatedWork W1966347854 @default.
• W2462677943 hasRelatedWork W1969939832 @default.
• W2462677943 hasRelatedWork W1983405057 @default.
• W2462677943 hasRelatedWork W2015332572 @default.
• W2462677943 hasRelatedWork W2057973347 @default.
• W2462677943 hasRelatedWork W2065096252 @default.
• W2462677943 hasRelatedWork W2071021302 @default.
• W2462677943 hasRelatedWork W2118736609 @default.
• W2462677943 hasRelatedWork W2129334879 @default.
• W2462677943 hasRelatedWork W2274860319 @default.
• W2462677943 hasRelatedWork W2508880476 @default.
• W2462677943 hasRelatedWork W2589237345 @default.
• W2462677943 hasRelatedWork W2594690422 @default.
• W2462677943 hasRelatedWork W2733997796 @default.
• W2462677943 hasRelatedWork W2959214455 @default.
• W2462677943 hasRelatedWork W3098981987 @default.
• W2462677943 hasRelatedWork W3103721275 @default.
• W2462677943 hasRelatedWork W3109159986 @default.
• W2462677943 hasRelatedWork W2130736944 @default.
• W2462677943 isParatext "false" @default.
• W2462677943 isRetracted "false" @default.
• W2462677943 magId "2462677943" @default.
• W2462677943 workType "dissertation" @default.