Atomic Mechanism of Diffusion

Processing bulk nanoscrystalline materials for structural applications still poses a significant challenge, particularly in achieving an industrially viable process. In this context, recent work has proved that complex nanoscale steel structures can be formed by solid reaction at low temperatures. These nanocrystalline bainitic steels present the highest strength ever recorded, unprecedented ductility, fatigue on par with commercial bearing steels and exceptional rolling-sliding wear performances. A description of the characteristics and significance of these remarkable structures in the context of the atomic mechanism of transformation is provided.

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Molecular dynamics simulations on nanocrystalline super-elastic NiTi shape memory alloy by addressing transformation ratchetting and its atomic mechanism

International Journal of Plasticity ◽

10.1016/j.ijplas.2019.10.009 ◽

2020 ◽

Vol 125 ◽

pp. 374-394 ◽

Cited By ~ 5

Author(s):

Bing Wang ◽

Guozheng Kang ◽

Wenping Wu ◽

Kun Zhou ◽

Qianhua Kan ◽

...

Keyword(s):

Molecular Dynamics ◽

Shape Memory Alloy ◽

Shape Memory ◽

Molecular Dynamics Simulations ◽

Niti Shape Memory Alloy ◽

Atomic Mechanism ◽

Dynamics Simulations

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In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles

Nature Communications ◽

10.1038/ncomms14462 ◽

2017 ◽

Vol 8 (1) ◽

Cited By ~ 25

Author(s):

Yingxuan Li ◽

Ling Zang ◽

Daniel L. Jacobs ◽

Jie Zhao ◽

Xiu Yue ◽

...

Keyword(s):

Bismuth Nanoparticles ◽

In Situ Study ◽

Atomic Mechanism

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Atomic mechanism of flat-band voltage shifts by La2O3 and Al2O3 in gate stacks

Applied Physics Letters ◽

10.1063/1.3173814 ◽

2009 ◽

Vol 95 (1) ◽

pp. 012906 ◽

Cited By ~ 34

Author(s):

L. Lin ◽

J. Robertson

Keyword(s):

Flat Band ◽

Flat Band Voltage ◽

Gate Stacks ◽

Atomic Mechanism

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Dynamical Simulation of the Motion of Curved Grain Boundaries Composed of Pyramidal-Shaped Ledges

MRS Proceedings ◽

10.1557/proc-193-189 ◽

1990 ◽

Vol 193 ◽

Cited By ~ 1

Author(s):

Re-Jhen Jhan ◽

P. D. Bristowe

Keyword(s):

Grain Boundary ◽

Grain Boundaries ◽

Boundary Migration ◽

Model System ◽

The Other ◽

Grain Boundary Migration ◽

Dynamical Simulation ◽

Atomic Mechanism ◽

Or Groups

ABSTRACTA dynamical simulation of curved grain boundaries composed of pyramidal-shaped ledges has shown that the boundaries can move by local conservative shuffles of atoms or groups of atoms such that one adjoining crystal grows at the expense of the other. In the model system studied, the shuffles often take the form of correlated rotational displacements about the axis normal to the boundary. The simulations provide support for the atomic mechanism proposed by Babcock and Balluffi to explain their observation of grain boundary migration without the participation of SGBDs.

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