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Nanomechanical characterization of relaxation processes in As–S chalcogenide glasses

  • Michael Trunov , Peter M. Nagy , Sergey Dub and Erika Kalman
Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 98 Issue 5

Abstract

Nanoscale mechanical properties of As – S binary chalcogenide glasses for bulk and thin-film samples have been studied, using the nanoindentation technique for a step loading procedure. All components of glass deformation (plastic, elastic. and visco-elastic, or retarded) have been evaluated during the nanoindentation process. An essential redistribution of these components was observed during unloading depending on the composition of the glasses. The same nanoindentation procedure was applied to bulk, as-deposited and annealed thin-film samples of the glasses. Plots of deformation components vs. As concentration (or average covalent coordination number <r>) show a minimum around the As25S75 – As30S70 composition (<r> ≈ 2.30), which corresponds to the rigidity percolation composition, i. e., the transition from the floppy phase to the intermediate one.

Keywords: Chalcogenide glass; Nanoindentation; Relaxation; Rigidity percolation; Intermediate phase
* Correspondence address, Peter Nagy, CRC-HAS, Pusztaszeri u 59 – 67, H-1025 Budapest, Hungary, Tel.: +36 1 325 7548, Fax: +36 1 325 7548, E-mail:

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Received: 2006-10-11
Accepted: 2007-1-14
Published Online: 2013-05-23
Published in Print: 2007-05-01

© 2007, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.101479
Keywords for this article
Chalcogenide glass; Nanoindentation; Relaxation; Rigidity percolation; Intermediate phase

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Editorial
  5. Basic
  6. Getting accurate nanoindentation data from time-dependent and microstructural effects of zinc
  7. Indentation-induced densification of soda-lime silicate glass
  8. Nanomechanical characterization of relaxation processes in As–S chalcogenide glasses
  9. Nanoindentation behavior and mechanical properties measurement of polymeric materials
  10. Model of a superlattice indentation
  11. Nanomechanical studies of MEMS structures
  12. Mechanical properties of nanostructured polymer particles for anisotropic conductive adhesives
  13. Nanomechanical studies of ultrathin polymeric resist films
  14. Testing the viscoelastic properties of SU8 photo resist thin films at different stages of processing by nanoindentation creep and stress relaxation
  15. Microscale characterization of bitumen – back-analysis of viscoelastic properties by means of nanoindentation
  16. Applied
  17. Visco-elastic properties of thin nylon films using multi-cycling nanoindentation
  18. Area function calibration in nanoindentation using the hardness instead of Young's modulus of fused silica as a reference value
  19. Multiscale modelling of nanoindentation
  20. Unusual architecture of the exceedingly tough Macadamia “nut”-shell as revealed by atomic force microscopy and nanomechanics
  21. Notifications
  22. DGM News
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