Determination of parameters of surface mass transport from morphological changes of beaded thin films

D. Beke, Yu S. Kaganovskii

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Theoretical and experimental investigations of the time dependence of the effective thickness and shift of the boundary of beaded thin films are presented, supposing evaporation or diffusion into the substrate. In addition to evaporation and (bulk and surface) diffusion, the role of boundary reactions at the perimeter of beads as well as at the surface layer-bulk interface are taken into account. It is shown that the time dependence of the effective thickness and shift of the boundary is different for diffusion-interacting ensembles and for isolated particles, and is determined also by the relative magnitudes of the diffusion and interface reaction currents. Our paper has a review character in the sense that all special cases treated before by different theoretical models can be obtained as limiting cases from our theory. Furthermore, the description of the time dependence of the shift of the boundary for diffusion dissolution is original. Using the example of Cu beaded films on Mo as well as Ag on alumina surfaces, it is illustrated that from simultaneous experimental measurements of the effective thickness and the shift of the beaded film one can determine all the parameters controlling the surface mass transfer.

Original languageEnglish
Pages (from-to)185-199
Number of pages15
JournalMaterials Science and Engineering B
Volume32
Issue number3
DOIs
Publication statusPublished - 1995

Fingerprint

Mass transfer
time dependence
Thin films
shift
thin films
Evaporation
evaporation
Surface diffusion
Aluminum Oxide
surface diffusion
beads
mass transfer
surface layers
dissolving
Dissolution
Alumina
aluminum oxides
Substrates

Keywords

  • Auger electron microscopy
  • Electron microscopy
  • Surface diffusion
  • Thin films

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Determination of parameters of surface mass transport from morphological changes of beaded thin films. / Beke, D.; Kaganovskii, Yu S.

In: Materials Science and Engineering B, Vol. 32, No. 3, 1995, p. 185-199.

Research output: Contribution to journalArticle

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