Radiation interaction with tilt grain boundaries in β-SiC

作者: Narasimhan Swaminathan , Marcin Wojdyr , Dane D. Morgan , Izabela Szlufarska

DOI: 10.1063/1.3693036

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摘要: Interaction between grain boundaries and radiation is studied in 3C-SiC by conducting molecular dynamics cascade simulations on bicrystal samples with different misorientation angles. The damage the in-grain regions was found to be unaffected boundary type comparable single crystal SiC. Radiation-induced chemical disorder quantified using homonuclear heteronuclear bond ratio (χ). We that χ increases nearly monotonically angle, which behavior has been attributed decreasing distance dislocation cores an increasing angle. change due irradiation independent of boundary.

参考文章(48)
Marcin Wojdyr, Sarah Khalil, Yun Liu, Izabela Szlufarska, Energetics and structure of lang0 0 1rang tilt grain boundaries in SiC Modelling and Simulation in Materials Science and Engineering. ,vol. 18, pp. 075009- ,(2010) , 10.1088/0965-0393/18/7/075009
Jiaming Zhang, Jie Lian, Antonio F. Fuentes, Fuxiang Zhang, Maik Lang, Fengyuan Lu, Rodney C. Ewing, Enhanced radiation resistance of nanocrystalline pyrochlore Gd2(Ti0.65Zr0.35)2O7 Applied Physics Letters. ,vol. 94, pp. 243110- ,(2009) , 10.1063/1.3155855
David E. Farrell, Noam Bernstein, Wing Kam Liu, Thermal effects in 10keV Si PKA cascades in 3C–SiC Journal of Nuclear Materials. ,vol. 385, pp. 572- 581 ,(2009) , 10.1016/J.JNUCMAT.2009.01.036
W. Jiang, H. Wang, I. Kim, I.-T. Bae, G. Li, P. Nachimuthu, Z. Zhu, Y. Zhang, W. J. Weber, Response of nanocrystalline 3C silicon carbide to heavy-ion irradiation Physical Review B. ,vol. 80, pp. 161301- ,(2009) , 10.1103/PHYSREVB.80.161301
M. Samaras, P.M. Derlet, H. Van Swygenhoven, M. Victoria, Atomic scale modelling of the primary damage state of irradiated fcc and bcc nanocrystalline metals Journal of Nuclear Materials. ,vol. 351, pp. 47- 55 ,(2006) , 10.1016/J.JNUCMAT.2006.02.030
M. Rose, A.G. Balogh, H. Hahn, Instability of irradiation induced defects in nanostructured materials Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 127, pp. 119- 122 ,(1997) , 10.1016/S0168-583X(96)00863-4
On the Structure of Tilt Grain Boundaries in Cubic Metals I. Symmetrical Tilt Boundaries Philosophical transactions - Royal Society. Mathematical, physical and engineering sciences. ,vol. 309, pp. 1- 36 ,(1983) , 10.1098/RSTA.1983.0020
L. Tan, T.R. Allen, J.D. Hunn, J.H. Miller, EBSD for microstructure and property characterization of the SiC-coating in TRISO fuel particles Journal of Nuclear Materials. ,vol. 372, pp. 400- 404 ,(2008) , 10.1016/J.JNUCMAT.2007.04.048
R. Devanathan, F. Gao, W.J. Weber, Atomistic modeling of amorphous silicon carbide using a bond-order potential Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 255, pp. 130- 135 ,(2007) , 10.1016/J.NIMB.2006.11.045
V. I. Ivashchenko, P. E. A. Turchi, V. I. Shevchenko, Simulations of the mechanical properties of crystalline, nanocrystalline, and amorphous SiC and Si Physical Review B. ,vol. 75, pp. 085209- ,(2007) , 10.1103/PHYSREVB.75.085209