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Interface width of immiscible layered elements

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Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 5

Abstract

Based on the thermodynamics of inhomogeneous systems, it is expected that the chemical transition at an interface between two immiscible components cannot be atomically sharp. However, measurements by direct local chemical analysis are rare, as utmost spatial resolution on an atomic scale is required. In this article, the temperature dependence of the chemical width of layer interfaces in binary Cu/Ag and ternary Cu/Ni81Fe19 specimens is studied experimentally. Atom probe techniques have been used to achieve sufficient spatial resolution. In both materials the interface width could be measured on a length scale of one to two nanometres. Its temperature dependence is found to be in agreement with the Cahn – Hilliard theory. From the measurements the gradient energy coefficient and the specific interfacial Gibbs energy are quantitatively determined.

Keywords: Interfacial chemistry; Atom probe tomography; Cahn – Hilliard theory; Gradient energy coefficient; Ag/Cu, Cu/NiFe
* Correspondence address, Prof. Dr. Guido Schmitz Institut für Materialphysik der Westf. Wilhelms-Universität, Münster Wilhelm-Klemm-Str. 10 48149 Münster, Germany Tel.: 49 (0) 251 833 35 72 Fax: 49 (0) 251 833 83 46 E-mail:

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Received: 2007-12-7
Accepted: 2008-2-19
Published Online: 2013-05-23
Published in Print: 2008-05-01

© 2008, Carl Hanser Verlag, München

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  2. Contents
  3. Editorial
  4. Prof. Dr. Reiner Kirchheim
  5. Review
  6. Laser-assisted atom probe tomography and nanosciences
  7. Heusler films and multilayers: X-ray resonant magnetic scattering and polarized neutron reflectivity studies on the relation between structure and magnetism
  8. Perovskite-type hydrides – synthesis, structures and properties
  9. Basic
  10. Interface width of immiscible layered elements
  11. The decomposition reaction of lithium amide studied by anelastic spectroscopy and thermogravimetry
  12. Migration of faceted high-angle grain boundaries in Zn
  13. EELS analysis of internal metal – oxide interfaces
  14. Effect of Chemical Confinement on the mechanical relaxation spectra of poly(ethene-co-methacrylic acid) copolymers
  15. Applied
  16. Properties of hydrogen absorption by nano-structured FeTi alloys
  17. A subnanoscale study of the nucleation, growth, and coarsening kinetics of Cu-rich precipitates in a multicomponent Fe – Cu based steel
  18. Hydrogen absorption in 3.1 nanometre sized palladium samples: does structure matter?
  19. Ultrasonic study of short-range hydrogen ordering in Pd-hydride
  20. Homogeneity of mechanically alloyed nano-crystalline Fe – Cu-powders
  21. Formation of nickel nanoparticles in nickel – ceramic anodes during operation of solid-oxide fuel cells
  22. Characterisation of complex hydrides synthesised or modified by ball milling
  23. On the small scale character of the stress and hydrogen concentration fields at the tip of an axial crack in steel pipeline: effect of hydrogen-induced softening on void growth
  24. Notifications
  25. DGM News
https://doi.org/10.3139/146.101661
Keywords for this article
Interfacial chemistry; Atom probe tomography; Cahn – Hilliard theory; Gradient energy coefficient; Ag/Cu, Cu/NiFe

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr. Reiner Kirchheim
  5. Review
  6. Laser-assisted atom probe tomography and nanosciences
  7. Heusler films and multilayers: X-ray resonant magnetic scattering and polarized neutron reflectivity studies on the relation between structure and magnetism
  8. Perovskite-type hydrides – synthesis, structures and properties
  9. Basic
  10. Interface width of immiscible layered elements
  11. The decomposition reaction of lithium amide studied by anelastic spectroscopy and thermogravimetry
  12. Migration of faceted high-angle grain boundaries in Zn
  13. EELS analysis of internal metal – oxide interfaces
  14. Effect of Chemical Confinement on the mechanical relaxation spectra of poly(ethene-co-methacrylic acid) copolymers
  15. Applied
  16. Properties of hydrogen absorption by nano-structured FeTi alloys
  17. A subnanoscale study of the nucleation, growth, and coarsening kinetics of Cu-rich precipitates in a multicomponent Fe – Cu based steel
  18. Hydrogen absorption in 3.1 nanometre sized palladium samples: does structure matter?
  19. Ultrasonic study of short-range hydrogen ordering in Pd-hydride
  20. Homogeneity of mechanically alloyed nano-crystalline Fe – Cu-powders
  21. Formation of nickel nanoparticles in nickel – ceramic anodes during operation of solid-oxide fuel cells
  22. Characterisation of complex hydrides synthesised or modified by ball milling
  23. On the small scale character of the stress and hydrogen concentration fields at the tip of an axial crack in steel pipeline: effect of hydrogen-induced softening on void growth
  24. Notifications
  25. DGM News
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