In situ investigation of MgO nanocube deformation at room temperature

I. Issa; J. Amodeo; J. Réthoré; L. Joly-Pottuz; C. Esnouf; J. Morthomas; M. Perez; J. Chevalier; K. Masenelli-Varlot

doi:10.1016/j.actamat.2014.12.001

In situ investigation of MgO nanocube deformation at room temperature

I. Issa, J. Amodeo, J. Réthoré, L. Joly-Pottuz, C. Esnouf, J. Morthomas, M. Perez, J. Chevalier, K. Masenelli-Varlot

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

The mechanical behavior of 〈1 0 0〉-oriented MgO nanocubes is investigated using in situ transmission electron microscopy (TEM) compression tests at room temperature and molecular dynamics simulations. Experiments show high strength and ductility, in addition to specific deformation mechanisms interpreted by the simulation. The nucleation and the propagation of 1/2〈1 1 0〉{1 1 0} dislocations are at the onset of the plastic deformation. The different deformation processes as well as the possible formation of a dislocation network during compression are discussed.

Original language	English
Pages (from-to)	295-304
Number of pages	10
Journal	Acta Materialia
Volume	86
DOIs	https://doi.org/10.1016/j.actamat.2014.12.001
Publication status	Published - 2015 Mar
Externally published	Yes

Keywords

In situ TEM
MgO
Molecular dynamics
Nanomechanics
Nanoparticles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/j.actamat.2014.12.001

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abstract = "The mechanical behavior of 〈1 0 0〉-oriented MgO nanocubes is investigated using in situ transmission electron microscopy (TEM) compression tests at room temperature and molecular dynamics simulations. Experiments show high strength and ductility, in addition to specific deformation mechanisms interpreted by the simulation. The nucleation and the propagation of 1/2〈1 1 0〉{1 1 0} dislocations are at the onset of the plastic deformation. The different deformation processes as well as the possible formation of a dislocation network during compression are discussed.",

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AU - Issa, I.

AU - Amodeo, J.

AU - Réthoré, J.

AU - Joly-Pottuz, L.

AU - Esnouf, C.

AU - Morthomas, J.

AU - Perez, M.

AU - Chevalier, J.

AU - Masenelli-Varlot, K.

PY - 2015/3

Y1 - 2015/3

N2 - The mechanical behavior of 〈1 0 0〉-oriented MgO nanocubes is investigated using in situ transmission electron microscopy (TEM) compression tests at room temperature and molecular dynamics simulations. Experiments show high strength and ductility, in addition to specific deformation mechanisms interpreted by the simulation. The nucleation and the propagation of 1/2〈1 1 0〉{1 1 0} dislocations are at the onset of the plastic deformation. The different deformation processes as well as the possible formation of a dislocation network during compression are discussed.

AB - The mechanical behavior of 〈1 0 0〉-oriented MgO nanocubes is investigated using in situ transmission electron microscopy (TEM) compression tests at room temperature and molecular dynamics simulations. Experiments show high strength and ductility, in addition to specific deformation mechanisms interpreted by the simulation. The nucleation and the propagation of 1/2〈1 1 0〉{1 1 0} dislocations are at the onset of the plastic deformation. The different deformation processes as well as the possible formation of a dislocation network during compression are discussed.

KW - In situ TEM

KW - MgO

KW - Molecular dynamics

KW - Nanomechanics

KW - Nanoparticles

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In situ investigation of MgO nanocube deformation at room temperature

Abstract

Keywords

ASJC Scopus subject areas

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