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Article Dans Une Revue Physical Review Letters Année : 2005

Complex Nonlinear Deformation of Nanometer Intergranular Glassy Films in βSi3N4

Résumé

The mechanical properties of a model of Y-doped intergranular glassy film in silicon nitride ceramics are studied by large-scale ab initio modeling. By linking directly to its electronic structure, it is shown that this microstructure has a complex nonlinear deformation under stress and Y doping significantly enhances the mechanical properties. The calculation of the electrostatic potential across the film supports the space charge model in ceramic microstructures.
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Dates et versions

hal-00556092 , version 1 (15-01-2011)

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  • HAL Id : hal-00556092 , version 1

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Jun Chen, Lizhi Ouyang, Paul Rulis, Anil Misra, W.Y. Ching. Complex Nonlinear Deformation of Nanometer Intergranular Glassy Films in βSi3N4. Physical Review Letters, 2005, pp.256103-1 - 256103-4. ⟨hal-00556092⟩
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