Effects of crystal orientation on the tensile and shear deformation of nickel–silicon interfaces: A molecular dynamics simulation

Amini, Hamid; Simchi, A.; Kokabi, A.H.

doi:10.1016/j.msea.2012.02.079

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…The orientation with the lowest value of the single defect decay obtains the highest strength resistance to the decay caused by the defect. The results of Table 4 show that the mechanical properties of [111] orientation are the highest and the mechanical properties of [100] orientation are the lowest, because the highest tensile strength is obtained for interfaces with the highest plane density and the lowest atomic disorder [ 40 ]. A higher yield strength profits the high-speed cutting as it increases the cutting efficiency.…”

Section: Resultsmentioning

confidence: 99%

General Molecular Dynamics Approach to Understand the Mechanical Anisotropy of Monocrystalline Silicon under the Nanoscale Effects of Point Defect

et al. 2021

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Mechanical anisotropy and point defects would greatly affect the product quality while producing silicon wafers via diamond-wire cutting. For three major orientations concerned in wafer production, their mechanical performances under the nanoscale effects of a point defect were systematically investigated through molecular dynamics methods. The results indicated anisotropic mechanical performance with fracture phenomena in the uniaxial deformation process of monocrystalline silicon. Exponential reduction caused by the point defect has been demonstrated for some properties like yield strength and elastic strain energy release. Dislocation analysis suggested that the slip of dislocations appeared and created hexagonal diamond structures with stacking faults in the [100] orientation. Meanwhile, no dislocation was observed in [110] and [111] orientations. Visualization of atomic stress proved that the extreme stress regions of the simulation models exhibited different geometric and numerical characteristics due to the mechanical anisotropy. Moreover, the regional evolution of stress concentration and crystal fracture were interrelated and mutually promoted. This article contributes to the research towards the mechanical and fracture anisotropy of monocrystalline silicon.

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Section: Resultsmentioning

confidence: 99%

General Molecular Dynamics Approach to Understand the Mechanical Anisotropy of Monocrystalline Silicon under the Nanoscale Effects of Point Defect

et al. 2021

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“…For instance, Ward et al [1] used the MD method and modified embedded atom method (MEAM) potential function to illustrate the effect of the crystal orientation of Al and Si in the deformation of Al/Si interface. The relationship between the strength of interface, the planar density and the width of disorder zone of Si/Ni interface was described by Amini et al [2]. Employing an embedded atom method (EAM) potential, they investigated the deformation mechanisms of the interface under tensile and shear loadings along various crystal orientations.…”

Section: Introductionmentioning

confidence: 99%

A molecular dynamics study of bond strength and interface conditions in the Al/Al2O3 metal–ceramic composites

Sazgar

Movahhedy

Mahnama

et al. 2015

Computational Materials Science

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Size effect on the plastic deformation of pre-void Ni/Ni3Al interface under uniaxial tension: A molecular dynamics simulation

Shang

Yang

et al. 2018

Computational Materials Science

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Effects of crystal orientation on the tensile and shear deformation of nickel–silicon interfaces: A molecular dynamics simulation

Cited by 8 publications

References 19 publications

General Molecular Dynamics Approach to Understand the Mechanical Anisotropy of Monocrystalline Silicon under the Nanoscale Effects of Point Defect

General Molecular Dynamics Approach to Understand the Mechanical Anisotropy of Monocrystalline Silicon under the Nanoscale Effects of Point Defect

A molecular dynamics study of bond strength and interface conditions in the Al/Al2O3 metal–ceramic composites

Size effect on the plastic deformation of pre-void Ni/Ni3Al interface under uniaxial tension: A molecular dynamics simulation

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