Hostname: page-component-669899f699-8p65j Total loading time: 0 Render date: 2025-04-26T04:20:41.719Z Has data issue: false hasContentIssue false
  • English
  • Français

Atomistic Modeling of Grain Boundary Fracture in Diamond

Published online by Cambridge University Press:  15 February 2011

O.A. Shenderova ,
D.W. Brenner ,
A. Omeltchenko ,
X. Su  and
L. Yang
O.A. Shenderova
Affiliation:
North Carolina State University, Raleigh, NC 27695, USA
D.W. Brenner
Affiliation:
North Carolina State University, Raleigh, NC 27695, USA
A. Omeltchenko
Affiliation:
Louisiana State University, Baton Rouge, LA 70803, USA
X. Su
Affiliation:
Louisiana State University, Baton Rouge, LA 70803, USA
L. Yang
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA, 94551
Get access

Abstract

Molecular dynamics simulations using a bond-order potential were carried out to investigate the behavior under load of several <001> and <011> symmetrical tilt grain boundaries in diamond. Cohesive energies, work for fracture, maximum stresses and strains as functions of the type of grain boundary were evaluated. It was found that special short-periodic GBs possess higher strength and resistance to a crack propagation than GBs in the nearby misorientation range. Crack behavior in polycrystalline diamond samples under an applied load was also simulated, and found to be predominantly transgranular.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 539: Symposium M – Fracture & Ductile vs. Brittle Behavior - Theory, Modelling… , 1998 , 319
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Watanabe, T., Mater.Sci.Eng. A 176, 39(1994).Google Scholar
2. Aust, K.T., Canad.Metal.Quart. 33, 265(1994).Google Scholar
3. Palumbo, G. and Aust, K.T., in Materials Interfaces, Wolf, D. and Yip, S.. Editors, (Chapman & Hall. London. 1992). p.190.Google Scholar
4. Vitek, V., J.Phys 1, 1085(1991).Google Scholar
5. Chen, S.P., Voter, A.F., Albers, R.C., Boring, A.M., Hay, P.J., J.Mater.Res. 5, 955(1990).Google Scholar
6. Chen, S.P.. Phil.Mag.A 66, 1(1992).Google Scholar
7. Chen, S.P., Srolovitz, D.J., Voter, A.F., J.Mater.Res. 4, 62(1989).Google Scholar
8. Wolf, D.. Jaszczak, J.A., in Materials lnterafices, Wolf, D. and Yip, S., Editors, (Chapman & Hall, London, 1992), p.662.Google Scholar
9. Lawn, B., Fracture of Brittle Solids, University Press, Cambridge (1993), p. 194.Google Scholar
10. Homstra, J., Physica 25, 409(1959).Google Scholar
11. The original potential is discussed in Brenner, D.W., Phys. Rev. 13 42, 9458 (1990).Google Scholar
12. Tyson, W.R.. Phil.Mag, 14, 925 (1966).Google Scholar
13. Shenderova, O.A.. Brenner, D.W., Nazarov, A.I., Romanov, A.E., Yang, L., Phys.Rev.B 57, R3181(1998).Google Scholar
14. Orowan, E., Report Progress Physics 12, 191(1949).Google Scholar
15. Kelly, A.. Strong Solids, (Clarendon Press: Oxford, 1973), p. 9.Google Scholar
16. Shenderova, O.A., Brenner, D.W., Omeltchenko, A., Yang, L., Nazarov, A., in Diamond Materials Davidson, V. J.L. et al. Editors, (Proc. of the Electrochemical Society, 1998).Google Scholar
17. Shenderova, O., presented at the Gordon Research Conference, Oxford, UK, 1998, unpublished.Google Scholar