Publications
Vibrational thermodynamics of Fe90Zr7B3 nanocrystalline alloy from nuclear inelastic scattering
- Author(s)
- Svetoslav Stankov, Marcel Miglierini, A Chumakov, Ilya Sergueev, Y.Z. Yue, Bogdan Sepiol, P Svec, L. Hu, Rudolf Rüffer
- Abstract
Recently we determined the iron-partial density of vibrational states (DOS) of nanocrystalline Fe90Zr7B3 (Nanoperm), synthesized by crystallization of an amorphous precursor, for various stages of nanocrystallization separating the DOS of the nanograins from that of the interfaces [S. Stankov, Y. Z. Yue, M. Miglierini, B. Sepiol, I. Sergueev, A. I. Chumakov, L. Hu, P. Svec, and R. Ruffer, Phys. Rev. Lett. 100, 235503 (2008)]. Here we present quantitative analysis of the evolution of various thermoelastic properties calculated from DOS such as mean-force constant, mean atomic displacement, vibrational entropy, and lattice specific heat as the material transforms from amorphous, through nanocrystalline, to fully crystallized state. The reported results shed new light on the previously observed anomalies in the vibrational thermodynamics of nanocrystalline materials.
- Organisation(s)
- Dynamics of Condensed Systems
- External organisation(s)
- European Synchrotron Radiation Facility ESRF, Slovak University of Technology in Bratislava, Aalborg University (AAU), Comenius University Bratislava
- Journal
- Physical Review B
- Volume
- 82
- No. of pages
- 8
- ISSN
- 1098-0121
- DOI
- https://doi.org/10.1103/PhysRevB.82.144301
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/vibrational-thermodynamics-of-fe90zr7b3-nanocrystalline-alloy-from-nuclear-inelastic-scattering(84313809-0bc0-44ad-82c6-ffc033a0d96d).html