On the reliability of powder diffraction Line Profile Analysis of plastically deformed nanocrystalline systems.
(2016) In Scientific Reports 6.- Abstract
- An iron-molybdenum alloy powder was extensively deformed by high energy milling, so to refine the bcc iron domain size to nanometer scale (~10 nm) and introduce a strong inhomogeneous strain. Both features contribute to comparable degree to the diffraction peak profile broadening, so that size and strain contributions can be easily separated by exploiting their different dependence on the diffraction angle. To assess the reliability of Line Profile Analysis, results were compared with evidence from other techniques, including scanning and transmission electron microscopy and X-ray small angle scattering. Results confirm the extent of the size broadening effect, whereas molecular dynamics simulations provide insight into the origin of the... (More)
- An iron-molybdenum alloy powder was extensively deformed by high energy milling, so to refine the bcc iron domain size to nanometer scale (~10 nm) and introduce a strong inhomogeneous strain. Both features contribute to comparable degree to the diffraction peak profile broadening, so that size and strain contributions can be easily separated by exploiting their different dependence on the diffraction angle. To assess the reliability of Line Profile Analysis, results were compared with evidence from other techniques, including scanning and transmission electron microscopy and X-ray small angle scattering. Results confirm the extent of the size broadening effect, whereas molecular dynamics simulations provide insight into the origin of the local atomic, inhomogeneous strain, pointing out the role of dislocations, domain boundaries and interactions among crystalline domains. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8826034
- author
- Rebuffi, Luca ; Troian, Andrea LU ; Ciancio, Regina ; Carlino, Elvio ; Amimi, Amine ; Leonardi, Alberto and Scardi, Paolo
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 6
- article number
- 20712
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:26860471
- scopus:84958213310
- wos:000369744700001
- pmid:26860471
- ISSN
- 2045-2322
- DOI
- 10.1038/srep20712
- language
- English
- LU publication?
- yes
- id
- aad48b75-fab0-4e66-9a3e-e874be56945b (old id 8826034)
- date added to LUP
- 2016-04-01 13:21:56
- date last changed
- 2022-03-21 18:13:01
@article{aad48b75-fab0-4e66-9a3e-e874be56945b,
abstract = {{An iron-molybdenum alloy powder was extensively deformed by high energy milling, so to refine the bcc iron domain size to nanometer scale (~10 nm) and introduce a strong inhomogeneous strain. Both features contribute to comparable degree to the diffraction peak profile broadening, so that size and strain contributions can be easily separated by exploiting their different dependence on the diffraction angle. To assess the reliability of Line Profile Analysis, results were compared with evidence from other techniques, including scanning and transmission electron microscopy and X-ray small angle scattering. Results confirm the extent of the size broadening effect, whereas molecular dynamics simulations provide insight into the origin of the local atomic, inhomogeneous strain, pointing out the role of dislocations, domain boundaries and interactions among crystalline domains.}},
author = {{Rebuffi, Luca and Troian, Andrea and Ciancio, Regina and Carlino, Elvio and Amimi, Amine and Leonardi, Alberto and Scardi, Paolo}},
issn = {{2045-2322}},
language = {{eng}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{On the reliability of powder diffraction Line Profile Analysis of plastically deformed nanocrystalline systems.}},
url = {{http://dx.doi.org/10.1038/srep20712}},
doi = {{10.1038/srep20712}},
volume = {{6}},
year = {{2016}},
}