Atomic structure of Fe90Sc10 glassy nanoparticles and nanoglasses. (October 2017)

• Record Type: Journal Article
• Authors: Wang, Chaomin; Guo, Xiaoai; Ivanisenko, Yulia; Goel, Sunkulp; Nirschl, Hermann; Gleiter, Herbert; Hahn, Horst
• Is Part Of: Scripta materialia. Number 139(2017)
• Page Start: 9
• Page End: 12
• Publication Date: 2017-10
• Subjects: Nanoglasses -- Glassy nanoparticles -- Atomic packing density -- Interfaces -- Small-angle X-ray scattering; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2017.06.007
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Glassy nanoparticles of a Fe90 Sc10 alloy have been studied using small- and wide-angle X-ray scattering. The results indicate that the surface shells have an electron density that is lower than the electron density in the cores of the glassy nanoparticles. The lower electron density seems to result primarily from a lower atomic packing density of the surface shells rather than from compositional variations due to surface segregation. During the consolidation of the glassy nanoparticles, the short-range order and the extra free volume content present in the shells may be transferred into the interfaces of the resulting bulk Fe90 Sc10 nanoglasses. Graphical abstract: