Journal Article

PUBDB-2021-01808

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Deformation Behavior of Cross-Linked Supercrystalline Nanocomposites: An in Situ SAXS/WAXS Study during Uniaxial Compression

Giuntini, D. (Corresponding author)Extern* ; Davydok, A.HZG* ; Blankenburg, M.HZG* ; Domènech, B. ; Bor, B.Extern* ; Li, M. ; Scheider, I. ; Krywka, C.HZG* ; Mueller, M.HZG* ; Schneider, G. A.Extern*

2021
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/acs.nanolett.0c05041  doi:10.3204/PUBDB-2021-01808

Abstract: With the ever-expanding functional applications of supercrystalline nanocomposites (a relatively new category of materials consisting of organically functionalized nanoparticles arranged into periodic structures), it becomes necessary to ensure their structural stability and understand their deformation and failure mechanisms. Inducing the cross-linking of the functionalizing organic ligands, for instance, leads to a remarkable enhancement of the nanocomposites’ mechanical properties. It is however still unknown how the cross-linked organic phase redistributes applied loads, how the supercrystalline lattice accommodates the imposed deformations, and thus in general what phenomena govern the overall material’s mechanical response. This work elucidates these aspects for cross-linked supercrystalline nanocomposites through an in situ small- and wide-angle X-ray scattering study combined with uniaxial pressing. Because of this loading condition, it emerges that the cross-linked ligands effectively carry and distribute loads homogeneously throughout the nanocomposites, while the superlattice deforms via rotation, slip, and local defects generation.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Zentrum für Material- und Küstenforschung (HZG)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P03 (PETRA III)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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