http://www.cnr.it/ontology/cnr/individuo/prodotto/ID57248
Anelastic relaxation processes due to hopping of interstitial oxygen in scandium (Articolo in rivista)
- Type
- Label
- Anelastic relaxation processes due to hopping of interstitial oxygen in scandium (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.msea.2003.08.081 (literal)
- Alternative label
F. Trequattrini (a); F. Cordero (b); G. Cannelli (c); R. Cantelli (a) (2004)
Anelastic relaxation processes due to hopping of interstitial oxygen in scandium
in Materials science & engineering. A, Structural materials: properties, microstructure and processing
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- F. Trequattrini (a); F. Cordero (b); G. Cannelli (c); R. Cantelli (a) (literal)
- Pagina inizio
- Pagina fine
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- Conference: 13th International Conference on Internal Friction and Ultrasonic Attentuation in Solids Location: Bilbao, SPAIN Date: JUL 08-12, 2002 (literal)
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- Rivista
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- fasc.(1-3). Elsevier.
13th International Conference on Internal Friction and Ultrasonic Attenuation in Solids. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (a) Dipartimento di Fisica, Università di Roma \"La Sapienza\", I-00185 Roma, and INFM, Italy
(b) CNR, Istituto di Acustica \"O.M. Corbino\", I-00133 Roma, and INFM, Italy
(c) Dipartimento di Fisica, Università della Calabria, I-87036 Cosenza, and INFM, Italy (literal)
- Titolo
- Anelastic relaxation processes due to hopping of interstitial oxygen in scandium (literal)
- Abstract
- The anelastic spectrum of the solid solution ScO has been investigated on a polycrystalline sample from 360 to 570 K for oxygen concentrations varying between 0.024 and 0.91 at.% O, as estimated by electrical resistivity and intentional doping. Two relaxation processes appear at 430 and 520 K for the vibration frequency of 3.5 kHz; both peaks are stable with thermal cycling and their intensities increase with the oxygen content.
The process at lower temperature has been tentatively interpreted as due to the stress-induced hopping of oxygen atoms between the non equivalent tetrahedral and octahedral interstitial sites. A possible mechanism for the higher temperature process could be the dissolution/formation of interacting OO pairs. (literal)
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