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|Title:||Stability map for nanocrystalline and amorphous materials|
|Authors:||Joshi, S.P. |
|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|
|Appears in Collections:||Staff Publications|
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