Mechanical Response of Semi-Brittle Nano Particles under an Imposed Cyclic Field

Y. Katz; W. Mook; R. Mukherjee; A. Gidwani; J. Deneen; William W. Gerberich

doi:10.4028/www.scientific.net/MSF.482.51

Paper Titles

Ideal Strength of Nano-Components
p.25

Theoretical Strength of Metals and Intermetallics from First Principles
p.33

Nanoscale Measurement of Stress and Strain by Quantitative High-Resolution Electron Microscopy
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Atomic Force Microscopy Study of the Early Fatigue Damage
p.45

Mechanical Response of Semi-Brittle Nano Particles under an Imposed Cyclic Field
p.51

Prediction and Control of Grain Boundary Fracture in Brittle Materials on the Basis of the Strongest-Link Theory
p.55

Anisotropic Behaviour of Grain Boundaries
p.63

Plasticity of Copper with Small Grain Size
p.71

Mechanical Behavior of Nanostructured Aluminum Alloys Containing Quasicrystalline Phase
p.77

HomeMaterials Science ForumMaterials Science Forum Vol. 482Mechanical Response of Semi-Brittle Nano Particles...

Mechanical Response of Semi-Brittle Nano Particles under an Imposed Cyclic Field

Abstract:

In elastic plastic solids, approaching the sub micron scale, critical experiments indicated significant differences in the mechanical response. Thus, mainly in small volume behavior a length scale issue is introduced with implications on the basic understanding of deformation and fracture processes. The current study is centered on the mechanical response of silicon particles in the range of 20-50 nm on sapphire substrate. Monotonic and cyclic mechanical tests have been performed by contact mechanics methodology at ambient temperature. Mechanical information and visualization assisted by scanning probe microscope-based nano indentation alluded to a model founded on dislocation dynamic effects. This facilitated developments regarding the length scale subject in the light of fatigue concepts and structural integrity aspects.

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Periodical:

Materials Science Forum (Volume 482)

Pages:

51-54

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.482.51

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Cite this paper

Online since:

April 2005

Authors:

Y. Katz, W. Mook, R. Mukherjee, A. Gidwani, J. Deneen, William W. Gerberich

Keywords:

Contact Mechanics, Cyclic Response, Micro Plasticity, Nanoscale, Silicon

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