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Fundamentals of interface phenomena in advanced bulk nanoscale materials

Baretzky, B. and Baró, M. D. and Grabovetskaya, G. P. and Gubicza, Jenő and Ivanov, M. B. and Kolobov, Yu. R. and Langdon, T. G. and Lendvai, János and Lipnitskii, A. G. and Mazilkin, A. A. and Nazarov, A. A. and Nogués, J. and Ovidko, I. A. and Protasova, S. G. and Raab, G. I. and Révész, Ádám and Skiba, N. V. and Sort, J. and Starink, M. J. and Straumal, B. B. and Surinach, S. and Ungár, Tamás and Zhilyaev, A. P. (2005) Fundamentals of interface phenomena in advanced bulk nanoscale materials. Reviews on Advanced Materials Science, 9 (1). pp. 45-108. ISSN 1606-5131

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Abstract

The review is devoted to a study of interface phenomena influencing advanced properties of nanoscale materials processed by means of severe plastic deformation, high-energy ball milling and their combinations. Interface phenomena include processes of interface defect structure relaxation from a highly nonequilibrium state to an equilibrium condition, grain boundary phase transformations and enhanced grain boundary and triple junction diffusivity. On the basis of an experimental investigation, a theoretical description of the key interfacial phenomena controlling the functional properties of advanced bulk nanoscale materials has been conducted. An interface defect structure investigation has been performed by TEM, high-resolution x-ray diffraction, atomic simulation and modeling. The problem of a transition from highly non-equilibrium state to an equilibrium one, which seems to be responsible for low thermostability of nanoscale materials, was studied. Also enhanced grain boundary diffusivity is addressed. Structure recovery and dislocation emission from grain boundaries in nanocrystalline materials have been investigated by analytical methods and modeling.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
Depositing User: Erika Bilicsi
Date Deposited: 11 Oct 2012 08:12
Last Modified: 11 Oct 2012 08:12
URI: http://real.mtak.hu/id/eprint/3091

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