Paper Titles
Interaction between Stress and Diffusion in Polymers
p.447
Two-Phase Hygrothermal Diffusion in an Epoxy Adhesive
p.453
Experimental Investigation of the Effect of the Ambient Gas on Evaporating Sessile Drops
p.461
On the Dynamics of Wetting of Water-Methanol Volatile Sessile Drops on Smooth Substrates
p.469
Diffusion and Segregation in Bulk Nanomaterials and Thin Layers
p.475
Phenomenological Aspects of Grain Boundary Diffusion
p.483
The Grain Boundary Wetting in the Sn– 25 at% In Alloys
p.491
Mössbauer Investigations of Grain-Boundary Diffusion and Segregation
p.497
Process-Induced Diffusion Phenomena in Advanced CMOS Technologies
p.510

Diffusion and Segregation in Bulk Nanomaterials and Thin Layers

Article Preview

Abstract:

The data are presented for Ni selfdiffusion and Au heterodiffusion in nanocrystalline Ni. Volume diffusion coefficients are much greater than those for a coarse – grained polycrystals extrapolated from high temperatures. Interface diffusion parameters were calculated based on the assumption that B – kinetic regime is realized at temperature range more than 448 K, while C – kinetic regime is realised at temperatures less than 423 K. The consistency of obtained results with the proposed cluster diffusion model is discussed. Diffusion in Au – Cu thin films (from several tens to several hundreds nanometers) was studied with the use of the Rutherford Back Scattering, RBS, under the kinetic regime B (448 – 523 K). The RBS spectra were transformed in the concentration depth profiles for both volume and grain boundary (GB) diffusion. The triple products Pn = snδDn (sn is the enrichment coefficient, while δ is the nanograin boundary width) were calculated using Whipple model. As a result of this analysis the s – value for Cu – Au system was determined to be of the order of unity. The paper is focused on a difference between GB diffusion parameters in nano – and coarse grained materials.

You might also be interested in these eBooks
Diffusion in Solids and Liquids, DSL-2006 I View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volumes 258-260)

Pages:

475-482

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.258-260.475

Citation:

Cite this paper

Online since:

October 2006

Authors:

Boris S. Bokstein, O.N. Petrova

Keywords:

Bulk Nanomaterials, Cluster Boundaries, Grain Boundary Diffusion, Nanograin Boundaries, Thin Film

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] R.P. Feynman: Engineering and Science Vol. 23 (1960), p.22.

Google Scholar

[2] L. Esaki, R. Tsu: IBM J. Res. Dev. Vol. 14 (1970), p.61.

Google Scholar

[3] L.M. Falikov, D.T. Pierce and S. B. Bader: J. Mater. Res. Vol. 5 (1990), p.1299.

Google Scholar

[4] H. Gleiter: in Deformation of Polycrystals: Mechanisms and Microstructures, edited by N. Hancen, A. Horsewell, T. Leffers and H. Lilholt (Riso. Nat. Lab., Ruskilde, Denmark, 1981), p.15.

Google Scholar

[5] R.W. Siegel, H. Hahn: in Current Trends in the Physics of Materials, edited by M. Yussouff, (World Scientific, Singapore, 1987), p.403.

Google Scholar

[6] M.S. Dresselhaus, G. Dresselhaus and P.C. Eklund: J. Mater. Res. Vol. 8 (1993), p. (2054).

Google Scholar

[7] H.Y. Hoffler, H. Hahn and R.S. Averback: Def. Dif. Forum Vol. 75 (1991), p.195.

Google Scholar

[8] H. Gleiter: Phys. Stat. Sol. Vol. B 172 (1992), p.220.

Google Scholar

[9] B.S. Bokstein and L.I. Trusov: Def. Dif. Forum Vol. 95-98 (1993), p.445.

Google Scholar

[10] Y. Bernardini, D. Beke: in Nanocrystallne Materials: Properties and Applications, edited by. P. Knauth and Y. Schoonman Kluwer (Ac. Publ., Boston, 2001).

Google Scholar

[11] B.S. Bokstein, H.D. Bröze, L.I. Trusov and T.P. Khvostantseva: Nanostructured Mater. Vol. 6 (1995), p.873.

Google Scholar

[12] W.K. Chu, Y.W. Mayer and M. A. Nicolet: Backscattering Spectrometry (Ac. Press, N. - Y., 1978), p.52.

Google Scholar

[13] B.S. Bokstein, H.D. Bröze, P.V. Kurkin and L.I. Trusov: Reports of High School. Ferrous Met. Vol. 1 (1994), p.49.

Google Scholar

[14] L.G. Harrison: Trans. Faraday Soc. Vol. 57 (1961), p.1191.

Google Scholar

[15] Kaur, Y. Mishin and W. Gust: Fundamentals of Grain and Interphase Boundary Diffusion (Wiley, New York, 1995), p.512.

Google Scholar

[16] A.R. Wazzan: Journal Appl. Phys. Vol. 36 (1965), p.3596.

Google Scholar

[17] L.I. Trusov, V.I. Novikov and V.G. Gryaznov: in Growth of Crystals, (Consultants Bureau, N. - Y, London, 1991), p.55.

Google Scholar

[18] S.V. Divinski, F. Hisker, Y. -S. Kang, J. -S. Lee and Chr. Herzig: Zt. für Metallkunde Vol. 93 (2002), p.256, 265.

Google Scholar

[19] E.W. Hart: Acta Met. Vol. 5 (1957), p.597.

Google Scholar

[20] J.C. Fisher: J. Appl. Phys. Vol. 22 (1951), p.74.

Google Scholar

[21] A.N. Aleshin, B.S. Bokstein, V.K. Egorov and P.V. Kurkin: Thin Solid Films Vol. 275 (1996), p.144.

DOI: 10.1016/0040-6090(95)07028-1

Google Scholar

[22] P.M. Hall and Y.M. Morabito: Surf. Sci. Vol. 59 (1976), p.624.

Google Scholar

[23] T. Surholt, Yu.M. Mishin and Chr. Herzig: Phys. Rev. Vol. B 50 (1994), p.3577.

Google Scholar

[24] Z. Erdelyi, Ch. Girardeaux, G.A. Langer, D.L. Beke, A. Rolland and Y. Bernardini: J. Appl. Phys. Vol. 89 (2001), p.3971.

Google Scholar

[25] J.C.M. Hwang, R.W. Balluffi: J. Appl. Phys. Vol. 50 (1979), p.1339.

Google Scholar