Sintering, structure, and mechanical properties of nanophase SiC: A molecular-dynamics and neutron scattering study

Alok Chatterjee, Rajiv K. Kalia, Aiichiro Nakano, Andrey Omeltchenko, Kenji Tsuruta, Priya Vashishta, Chun Keung Loong, Markus Winterer, Sylke Klein

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38 Citations (Scopus)

Abstract

Structure, mechanical properties, and sintering of nanostructured SiC (n-SiC) are investigated with neutron scattering and molecular-dynamics (MD) techniques. Both MD and the experiment indicate the onset of sintering around 1500 K. During sintering, the pores shrink while maintaining their morphology: the fractal dimension is ∼ 2 and the surface roughness exponent is ∼0.45. Structural analyses reveal that interfacial regions in n-SiC are disordered with nearly the same number of three- and fourfold coordinated Si atoms. The elastic moduli scale with the density as ∼ρμ, where μ = 3.4±0.1.

Original languageEnglish
Pages (from-to)1132-1134
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number8
DOIs
Publication statusPublished - Aug 21 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Chatterjee, A., Kalia, R. K., Nakano, A., Omeltchenko, A., Tsuruta, K., Vashishta, P., Loong, C. K., Winterer, M., & Klein, S. (2000). Sintering, structure, and mechanical properties of nanophase SiC: A molecular-dynamics and neutron scattering study. Applied Physics Letters, 77(8), 1132-1134. https://doi.org/10.1063/1.1289661