Search Results - "Mao, Scott X"
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1
Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals
Published in Nature communications (18-05-2020)“…Design and processing of advanced lightweight structural alloys based on magnesium and titanium rely critically on a control over twinning that remains elusive…”
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2
Formation of monatomic metallic glasses through ultrafast liquid quenching
Published in Nature (London) (14-08-2014)“…Metallic liquids of single elements have been successfully vitrified to their glassy states by achieving an ultrafast quenching rate in a new experimental…”
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3
Microstructural Evolution of Tin Nanoparticles during In Situ Sodium Insertion and Extraction
Published in Nano letters (14-11-2012)“…The microstructural changes and phase transformations of tin nanoparticles during electrochemical sodiation were studied with a nanosized sodium ion battery…”
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4
In situ atomistic observation of disconnection-mediated grain boundary migration
Published in Nature communications (11-01-2019)“…Shear-coupled grain boundary (GB) migration is of general significance in the deformation of nanocrystalline and polycrystalline materials, but comprehensive…”
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5
Dislocation mechanisms and 3D twin architectures generate exceptional strength-ductility-toughness combination in CrCoNi medium-entropy alloy
Published in Nature communications (20-02-2017)“…Combinations of high strength and ductility are hard to attain in metals. Exceptions include materials exhibiting twinning-induced plasticity. To understand…”
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6
Nanoscale origins of the damage tolerance of the high-entropy alloy CrMnFeCoNi
Published in Nature communications (09-12-2015)“…Damage tolerance can be an elusive characteristic of structural materials requiring both high strength and ductility, properties that are often mutually…”
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7
Reaction and Capacity-Fading Mechanisms of Tin Nanoparticles in Potassium-Ion Batteries
Published in Journal of physical chemistry. C (15-06-2017)“…In this article, we report a study of the electrochemical performance and degradation mechanism of tin (Sn) nanoparticle anodes in potassium-ion batteries…”
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8
Size-dependent dynamic structures of supported gold nanoparticles in CO oxidation reaction condition
Published in Proceedings of the National Academy of Sciences - PNAS (24-07-2018)“…Gold (Au) catalysts exhibit a significant size effect, but its origin has been puzzling for a long time. It is generally believed that supported Au clusters…”
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9
Size-Dependent Fracture of Silicon Nanoparticles During Lithiation
Published in ACS nano (28-02-2012)“…Lithiation of individual silicon nanoparticles was studied in real time with in situ transmission electron microscopy. A strong size dependence of fracture was…”
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10
Unstable twin in body-centered cubic tungsten nanocrystals
Published in Nature communications (19-05-2020)“…Twinning is commonly activated in plastic deformation of low stacking-fault face-centered cubic (Fcc) metals but rarely found in body-centered cubic (Bcc)…”
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11
High-Performance Rh2P Electrocatalyst for Efficient Water Splitting
Published in Journal of the American Chemical Society (19-04-2017)“…The search for active, stable, and cost-efficient electrocatalysts for hydrogen production via water splitting could make a substantial impact on energy…”
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12
Near-ideal theoretical strength in gold nanowires containing angstrom scale twins
Published in Nature communications (23-04-2013)“…Although nanoscale twinning is an effective means to enhance yield strength and tensile ductility in metals, nanotwinned metals generally fail well below their…”
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13
Two-Phase Electrochemical Lithiation in Amorphous Silicon
Published in Nano letters (13-02-2013)“…Lithium-ion batteries have revolutionized portable electronics and will be a key to electrifying transport vehicles and delivering renewable electricity…”
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14
Metallic nanocrystals with low angle grain boundary for controllable plastic reversibility
Published in Nature communications (18-06-2020)“…Advanced nanodevices require reliable nanocomponents where mechanically-induced irreversible structural damage should be largely prevented. However, a…”
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15
Atomistic observation on diffusion-mediated friction between single-asperity contacts
Published in Nature materials (01-02-2022)“…The field of nanotribology has long suffered from the inability to directly observe what takes place at a sliding interface. Although techniques based on…”
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16
Atomic-scale observation of nucleation- and growth-controlled deformation twinning in body-centered cubic nanocrystals
Published in Nature communications (16-01-2024)“…Twinning is an essential mode of plastic deformation for achieving superior strength and ductility in metallic nanostructures. It has been generally believed…”
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17
In situ observation of shear-driven amorphization in silicon crystals
Published in Nature nanotechnology (01-10-2016)“…Silicon nanocrystals under shear stress go through an intermediate, diamond-hexagonal phase before becoming amorphous. Amorphous materials are used for both…”
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18
In situ atomic-scale imaging of electrochemical lithiation in silicon
Published in Nature nanotechnology (01-11-2012)“…In lithium-ion batteries, the electrochemical reaction between the electrodes and lithium is a critical process that controls the capacity, cyclability and…”
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19
Atomistic processes of surface-diffusion-induced abnormal softening in nanoscale metallic crystals
Published in Nature communications (02-09-2021)“…Ultrahigh surface-to-volume ratio in nanoscale materials, could dramatically facilitate mass transport, leading to surface-mediated diffusion similar to…”
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20
In Situ Transmission Electron Microscopy Observations of Electrochemical Oxidation of Li2O2
Published in Nano letters (08-05-2013)“…In this Letter, we report the first in situ transmission electron microscopy observation of electrochemical oxidation of Li2O2, providing insights into the…”
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