Spinodal decomposition in nanoparticles-experiments and simulation

Bence D. Gajdics, János J. Tomán, Fanni Misják, G. Radnóczi, Z. Erdélyi

Research output: Conference contribution

2 Citations (Scopus)

Abstract

For revealing internal atomic processes in bimetallic nanoparticles, individual hemispherical Ag-Cu alloy particles were grown by direct current (DC) magnetron sputtering. Phase separation of particles was found to be size-and composition-dependent. Particles smaller than 5 nm in diameter remained as a solid solution of the components for all tested compositions (15-80 at.% Ag). At 15 and 30 at.% Ag compositions phase separation was observed only for particles above 5 nm in diameter. Computer simulations by Stochastic Kinetic Mean Field model reproduced the size-dependence of the decomposition and the internal structure of two-phase particles. Theoretical explanation is given for the composition dependence of the phase separation tendency.

Original languageEnglish
Title of host publicationDiffusion in Materials DIMAT-2017 - 10th International Conference on Diffusion in Materials
PublisherTrans Tech Publications Ltd
Pages89-95
Number of pages7
Volume383
ISBN (Print)9783035711301
DOIs
Publication statusPublished - jan. 1 2018
Event10th International Conference on Diffusion in Materials, DIMAT 2017 - Haifa, Israel
Duration: máj. 7 2017máj. 12 2017

Other

Other10th International Conference on Diffusion in Materials, DIMAT 2017
CountryIsrael
CityHaifa
Period5/7/175/12/17

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ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Gajdics, B. D., Tomán, J. J., Misják, F., Radnóczi, G., & Erdélyi, Z. (2018). Spinodal decomposition in nanoparticles-experiments and simulation. In Diffusion in Materials DIMAT-2017 - 10th International Conference on Diffusion in Materials (Vol. 383, pp. 89-95). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/DDF.383.89