Complex Nonlinear Deformation of Nanometer Intergranular Glassy Films in β−Si3N4
Issue Date
2005-12-16Author
Chen, Jun
Ouyang, Lizhi
Rulis, Paul
Misra, Anil
Ching, Wai-Yim
Publisher
American Physical Society
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
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.
Description
This is the published version. Copyright 2005 American Physical Society
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Citation
Chen, Jun, Lizhi Ouyang, Paul Rulis, Anil Misra, and W. Y. Ching. "Complex Nonlinear Deformation of Nanometer Intergranular Glassy Films in β − Si 3 N 4." Phys. Rev. Lett. Physical Review Letters 95.25 (2005). http://dx.doi.org/10.1103/PhysRevLett.95.256103
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