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HomeKey Engineering MaterialsKey Engineering Materials Vols. 257-258Brittle-Ductile Transition in Nano Bending of...

Brittle-Ductile Transition in Nano Bending of Monocrystalline Silicon Carbide Analyzed by Molecular Dynamics Simulation

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Advances in Abrasive Technology VI

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Periodical:

Key Engineering Materials (Volumes 257-258)

Pages:

15-20

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.257-258.15

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Online since:

February 2004

Authors:

Hiroaki Tanaka, M. Sano, Shiro Shimada

Keywords:

Brittle-Ductile Transition, Computer Simulation, Crack Initiation, Ductile Mode Machining, Molecular Dynamic (MD), Monocrystalline Silicon Carbide, Phase Transformation, Plastic Deformation

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© 2004 Trans Tech Publications Ltd. All Rights Reserved

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[1] C. Kittel: Introduction to Solid State Physics (John Wiley & Sons Inc., New York 1996).

[2] J. Tersoff: Physical Review, Part B, Vol. 39 (1989), p.5566.

[3] L.C. Zhang and H. Tanaka: JSME Series, Part A, Vol. 42 (1999), p.546.

[4] N. Taniguchi: Nanotechnology (Oxford University Press Inc., New York 1996). 48 50 52 54 56 0 20 40 60 80 100 0 10 20 30 40 50 0 20 40 60 80 100 Stress (GPa) Plastic deformation ǻmax Ǽoct ǻoct Critical level Elapsed time (ps) (a) Plastic deformation (model I) Fig. 7. Change of maximum value of stresses around crack or deformed area Critical level Critical level Elapsed time (ps) (b) Brittle fracture (model II) ǻmax Ǽoct ǻoct Stress (GPa) Plastic deformation Crack propagation