Works (22)
Updated: July 26th, 2023 21:15
2023 journal article
Surface Adatom Diffusion-Assisted Dislocation Nucleation in Metal Nanowires
NANO LETTERS, 23(12), 5779–5784.
author keywords: mechanical deformation; plasticity; surfacediffusion; defect nucleation; nanostructures; kinetic Monte Carlo
Source: Web Of Science
Added: July 10, 2023
2020 journal article
Competition between shear localization and tensile detwinning in twinned nanowires
PHYSICAL REVIEW MATERIALS, 4(2).
Source: Web Of Science
Added: March 23, 2020
2020 journal article
In-situ TEM study of dislocation interaction with twin boundary and retraction in twinned metallic nanowires
ACTA MATERIALIA, 196, 304–312.
author keywords: Dislocation slip; Twin boundary; Recoverable plasticity; MD simulations; In-situ TEM
Source: Web Of Science
Added: August 31, 2020
2019 journal article
Atomic structure of gamma '' phase in Mg-Gd-Y-Ag alloy induced by Ag addition
PHILOSOPHICAL MAGAZINE, 99(16), 1957–1969.
author keywords: Mg alloys; precipitation; HAADF-STEM; microstructural analysis
Source: Web Of Science
Added: May 20, 2019
2019 journal article
Hydrogen embrittlement in metallic nanowires
NATURE COMMUNICATIONS, 10.
TL;DR:
The authors combine nanomechanical testing and molecular dynamics simulations to show that hydrogen can suppress surface dislocation nucleation in silver nanowires.
(via Semantic Scholar)
open access via www.nature.com (publisher PDF)
Source: Web Of Science
Added: May 20, 2019
2019 journal article
In Situ Nano-thermomechanical Experiment Reveals Brittle to Ductile Transition in Silicon Nanowires
NANO LETTERS, 19(8), 5327–5334.
author keywords: Brittle to ductile transition; dislocation; plasticity; silicon nanowire; in situ TEM
TL;DR:
In situ high resolution TEM imaging and atomistic reaction pathway modeling reveal that the unconventional ½〈110〉{001} dislocations become highly active with increasing temperature and thus play a critical role in the formation of deformation bands, leading to transition from brittle fracture to dislocation-mediated failure in Si nanowires at elevated temperatures.
(via Semantic Scholar)
Source: Web Of Science
Added: September 3, 2019
2019 journal article
Transition of Deformation Mechanisms in Single-Crystalline Metallic Nanowires
ACS NANO, 13(8), 9082–9090.
author keywords: dislocation slip; twinning; plasticity; nanowire; in situ TEM
TL;DR:
Using in situ transmission electron microscopy tensile tests and molecular dynamics simulations, an additional factor, cross-sectional shape, is reported that can affect the competition between the deformation mechanisms in single crystalline FCC metallic NWs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: September 23, 2019
2017 journal article
Anomalous Tensile Detwinning in Twinned Nanowires
PHYSICAL REVIEW LETTERS, 19(25).
TL;DR:
Using quantitative in situ transmission electron microscopy based nanomechanical testing and molecular dynamics simulations, a transition of the deformation mechanism from localized dislocation slip to delocalized plasticity via an anomalous tensile detwinning mechanism in bitwinned metallic NWs is reported.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
On the origin and behavior of irradiation-induced c-component dislocation loops in magnesium
ACTA MATERIALIA, 131, 457–466.
author keywords: In situ transmission electron microscopy; C-component dislocation loop; Atomic structure; Magnesium; Stacking faults
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018
2016 journal article
On the size-dependent elasticity of penta-twinned silver nanowires
EXTREME MECHANICS LETTERS, 8, 177–183.
author keywords: Nanowires; Nanomechanics; Elasticity size effect
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Evolution of Irradiation-Induced Vacancy Defects in Boron Nitride Nanotubes
SMALL, 12(6), 818–824.
author keywords: boron nitride; nanotubes; electron irradiation; TEM; irradiation-induced defects; vacancy defects
TL;DR:
Irradiation-induced vacancy defects in multiwalled (MW) boron nitride nanotubes are investigated via in situ high-resolution transmission electron microscope operated at 80 kV, with a homogeneous distribution of electron beam intensity.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Large anelasticity and associated energy dissipation in single-crystalline nanowires
Nature Nanotechnology, 10(8), 687–691.
TL;DR:
It is shown that single-crystalline ZnO and p-doped Si nanowires can exhibit anelastic behaviour that is up to four orders of magnitude larger than the largest anelastically observed in bulk materials, with a timescale on the order of minutes, suggesting that crystalline Nanowires with point defects are promising materials for energy damping applications.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2015 journal article
Recoverable plasticity in penta-twinned metallic nanowires governed by dislocation nucleation and retraction
NATURE COMMUNICATIONS, 6.
TL;DR:
A dislocation-mediated, time-dependent and fully reversible plastic behaviour in penta-twinned silver nanowires is reported, which originates from the surface nucleation, propagation and retraction of partial dislocations.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Strain Hardening and Size Effect in Five-fold Twinned Ag Nanowires
NANO LETTERS, 15(6), 4037–4044.
author keywords: Nanowire; twin boundary; strain hardening; size effects; in situ experiment; molecular dynamics
TL;DR:
This work provides mechanistic insights into enhancing the tensile ductility of metallic nanostructures by engineering the internal interfaces and defects by nanomechanical testing and atomistic modeling.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2014 journal article
A new metastable precipitate phase in Mg-Gd-Y-Zr alloy
PHILOSOPHICAL MAGAZINE, 94(21), 2403–2409.
author keywords: magnesium alloys; metastable phases; base-centred orthorhombic structure; phase transformations
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2014 journal article
Design and operation of silver nanowire based flexible and stretchable touch sensors
JOURNAL OF MATERIALS RESEARCH, 30(1), 79–85.
Contributors: Z. Cui n, F. Poblete n, n, S. Yao n, X. Jiang n & Y. Zhu n
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2014 journal article
Mechanical Properties of Silicon Carbide Nanowires: Effect of Size-Dependent Defect Density
NANO LETTERS, 14(2), 754–758.
author keywords: Size effect; ultrahigh strength; in situ tensile testing; brittle fracture; nanomechanics
TL;DR:
The SiC NWs are found to deform linear elastically until brittle fracture, and their fracture origin is identified in the 3C structures with inclined SFs, rather than the highly defective structures.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2013 journal article
Dislocations with edge components in nanocrystalline bcc Mo
Journal of Materials Research, 28(13), 1820–1826.
Contributors: n, W. Xu n, W. Jian n, H. Yuan n, M. Tsai n, Y. Zhu n , Y. Zhang *, P. Millett *
Sources: NC State University Libraries, ORCID, NC State University Libraries
Added: August 6, 2018
2013 journal article
In-situ atomic-scale observation of irradiation-induced void formation
NATURE COMMUNICATIONS, 4.
TL;DR:
In-situ atomic-scale observation of the nucleation and growth of voids in hexagonal close-packed magnesium under electron irradiation shows that the initial growth in length is controlled by slow nucleation kinetics of vacancy layers on basal facets and anisotropic vacancy diffusivity, and the subsequent thickness growth is driven by thermodynamics to reduce surface energy.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2013 journal article
Physics and model of strengthening by parallel stacking faults
Applied Physics Letters, 103(13), 133108.
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018
2012 journal article
Morphology, structure and composition of precipitates in Al0.3CoCrCu0.5FeNi high-entropy alloy
INTERMETALLICS, 32, 329–336.
author keywords: Precipitates; Microstructure; Widmanstatten morphology; Electron microscopy; transmission
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2012 journal article
Significant hardening due to the formation of a sigma phase matrix in a high entropy alloy
INTERMETALLICS, 33, 81–86.
author keywords: Age-hardening; Precipitates; Electron microscopy, transmission
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
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