Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.101.025501
Title: Stability map for nanocrystalline and amorphous materials
Authors: Joshi, S.P. 
Ramesh, K.T.
Issue Date: 9-Jul-2008
Source: Joshi, S.P., Ramesh, K.T. (2008-07-09). Stability map for nanocrystalline and amorphous materials. Physical Review Letters 101 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.101.025501
Abstract: We present a stability map which predicts the domains of shear instability due to grain rotation in nanocrystalline materials. The onset of this mode of instability is influenced by grain-size-dependent mechanisms and the length-scale of intergranular interaction. The map shows the grain size regimes that are inherently susceptible to this mode for a range of materials. In the amorphous limit, the model predicts embryonic nuclei sizes of about 10-50 nm, which agrees well with the shear band thicknesses for many metallic glasses. © 2008 The American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/61359
ISSN: 00319007
DOI: 10.1103/PhysRevLett.101.025501
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