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Structural transformations in nano- and microobjects triggered by disclinations

Published online by Cambridge University Press:  17 November 2011

Alexey E. Romanov ,
Anatoly A. Vikarchuk ,
Anna L. Kolesnikova ,
Leonid M. Dorogin ,
Ilmar Kink  and
Elias C. Aifantis
Alexey E. Romanov
Affiliation:
Institute of Physics, University of Tartu, 51014 Tartu, Estonia; Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia; and Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
Anatoly A. Vikarchuk
Affiliation:
Togliatti State University, 445667 Togliatti, Russia
Anna L. Kolesnikova
Affiliation:
Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, 199178 St. Petersburg, Russia
Leonid M. Dorogin*
Affiliation:
Institute of Physics, University of Tartu, 51014 Tartu, Estonia
Ilmar Kink
Affiliation:
Institute of Physics, University of Tartu, 51014 Tartu, Estonia
Elias C. Aifantis
Affiliation:
Aristotle University of Thessaloniki, GR 54124 Thessaloniki, Greece
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Crystalline pentagonal nano- and microrods (PRs) and pentagonal nano- and microparticles (PPs) with 5-fold symmetry are studied. Structure of PRs and PPs and their elastic distortions are characterized in the framework of the disclination approach. Relaxation of mechanical stresses due to disclinations causes structural transformations in PRs and PPs. Experimental evidence of such transformations, namely, the appearance of internal cavities and pores, and growth of whiskers in copper PRs and PPs grown in the process of electrodeposition is demonstrated. A brief review of existing models of stress relaxation in PRs and PPs is presented. We discuss a new model of nanowhisker growth based on the nucleation of two dislocation loops of opposite signs near the surface of the crystal with disclination. As a result, vacancy-type dislocation loop remains in the material and serves as a nucleus for cavity, while the interstitial loop comes to the free surface and contributes to whisker growth.

Keywords

DislocationsElectrodepositionCu
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 3: Focus Issue: Advances in Mechanics of One-Dimensional Micro/Nanomaterials , 14 February 2012 , pp. 545 - 551
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1.Ino, S.: Epitaxial growth of metals on rocksalt faces cleaved in vacuum. II. Orientation and structure of gold particles formed in ultrahigh vacuum. J. Phys. Soc. Jpn. 21, 346 (1966).CrossRefGoogle Scholar
2.Hofmeister, H.: Forty years study of fivefold twinned structures in small particles and thin films. Cryst. Res. Technol. 33, 3 (1998).3.0.CO;2-3>CrossRefGoogle Scholar
3.Gryaznov, V.G., Heydenreich, J., Kaprelov, A.M., Nepijko, S.A., Romanov, A.E., and Urban, J.: Pentagonal symmetry and disclinations in small particles. Cryst. Res. Technol. 34, 1091 (1999).3.0.CO;2-S>CrossRefGoogle Scholar
4.Yacaman, M.J., Ascencio, J.A., Liu, H.B., and Gardea-Torresday, J.: Structure shape and stability of nanometric sized particles. J. Vac. Sci. Technol., B 19, 1091 (2001).CrossRefGoogle Scholar
5.Koga, K. and Sugawara, K.: Population statistics of gold nanoparticle morphologies: Direct determination by HREM observations. Surf. Sci. 529, 23 (2003).CrossRefGoogle Scholar
6.Vikarchuk, A.A. and Volenko, A.P.: Pentagonal copper crystals: Various growth shapes and specific features of their internal structure. Phys. Solid State 47, 352 (2005).CrossRefGoogle Scholar
7.Yasnikov, I.S.: Elastic stress relaxation in pentagonal fine particles and crystallites of electrolytic origin. Tech. Phys. Lett. 52, 666 (2007).Google Scholar
8.Seo, D., Yoo, C.I., Chung, I.S., Park, S.M., Ryu, S., and Hyunjoon, S.: Shape adjustment between multiply twinned and single-crystalline polyhedral gold nanocrystals: Decahedra, icosahedra, and truncated tetrahedra. J. Phys. Chem. C 112, 2469 (2008).CrossRefGoogle Scholar
9.Tang, Z. and Kotov, N.A.: One-dimensional assemblies of nanoparticles: Preparation, properties, and promise. Adv. Mater. 17, 951 (2005).CrossRefGoogle Scholar
10.De Wit, R.: Partial disclinations. J. Phys. Chem. 5, 529 (1972).Google Scholar
11.Howie, A. and Marks, L.D.: Elastic strains and the energy balance for multiply twinned particles. Philos. Mag. A 49, 95 (1984).CrossRefGoogle Scholar
12.Gryaznov, V.G., Kaprelov, A.M., Romanov, A.E., and Polonsky, I.A.: Channels of relaxation of elastic stresses in pentagonal nanoparticles. Phys. Status Solidi B 167, 441 (1991).CrossRefGoogle Scholar
13.Marks, L.D.: Experimental studies of small particle structures. Rep. Prog. Phys. 57, 603 (1994).CrossRefGoogle Scholar
14.Romanov, A.E. and Vladimirov, V.I.: Disclinations in crystalline solids, in: Dislocations in Solids, edited by Nabarro, FRN Vol. 9 (North-Holland, Amsterdam, 1992) p.191.Google Scholar
15.Romanov, A.E. and Kolesnikova, A.L.: Application of disclination concept to solid structures. Prog. Mater. Sci. 54, 740 (2009).CrossRefGoogle Scholar
16.Dorogin, L.M., Vlassov, S., Kolesnikova, A.L., Kink, I., Lohmus, R., and Romanov, A.E.: Crystal mismatched layers in pentagonal nanorods and nanoparticles. Phys. Status Solidi B 247(2), 288 (2010).CrossRefGoogle Scholar
17.Romanov, A.E., Polonsky, I.A., Gryaznov, V.G., Nepijko, S.A., Junghanns, T., and Vitrykhovski, N.I.: Voids and channels in pentagonal crystals. J. Cryst. Growth 129, 691 (1993).CrossRefGoogle Scholar
18.Kolesnikova, A.L. and Romanov, A.E.: Stress relaxation in pentagonal whiskers. Tech. Phys. Lett. 33(10), 886 (2007).CrossRefGoogle Scholar
19.Mikhailin, A.I. and Romanov, A.E.: Amorphization of a disclination core. Sov. Phys. Solid State 28, 337 (1986).Google Scholar
20.Rybin, V.V.: Large Plastic Deformations and Fracture of Metals (Metalurgia, Moscow, 1986) [in Russian].Google Scholar
21.Peach, M.O.: Mechanism of growth of whiskers on cadmium. J. Appl. Phys. 23, 1401 (1952).CrossRefGoogle Scholar
22.Eshelby, J.D.: A tentative theory of metallic whisker growth. Phys. Rev. 91, 755 (1953).CrossRefGoogle Scholar
23.Lindborg, U.: A model for the spontaneous growth of zinc, cadmium and tin whiskers. Acta Metall. 24(2), 181 (1976).CrossRefGoogle Scholar
24.Tu, K.N. and Li, J.C.M.: Spontaneous whisker growth on lead-free solder finishes. Mater. Sci. Eng., A 409, 131 (2005).CrossRefGoogle Scholar
25.Zhao, J-H., Su, P., Ding, M., Chopin, S., and Ho, P.S.: Microstructure-based stress modeling of tin whisker growth. IEEE Trans. Electron. Packag. Manuf. 29, 265 (2006).CrossRefGoogle Scholar
26.Smetana, J.: Theory of tin whisker growth: The end game. IEEE Trans. Electron. Packag. Manuf. 30, 11 (2007).CrossRefGoogle Scholar
27.Kolesnikova, A.L. and Romanov, A.E.: Circular Dislocation-Disclination loops and Their Application to Solution of the Boundary Value Problems in the Theory of Defects (USSR Academy of Sciences, Leningrad, 1986) [in Russian].Google Scholar
28.Kolesnikova, A.L. and Romanov, A.E.: Virtual circular dislocation-disclination loop technique in boundary value problems in the theory of defects. J. Appl. Mech. 71, 409 (2004).CrossRefGoogle Scholar