Journal Article

PUBDB-2017-00634

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Local flow stresses in interpenetrating-phase composites based on nanoporous gold — In situ diffraction

Wang, K. (Corresponding author) ; Hartig, C.Extern* ; Blankenburg, M.Extern* ; Müller, M.HZG* ; Günther, R. ; Weissmüller, J.

2017
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.scriptamat.2016.09.026  doi:10.3204/PUBDB-2017-00634

Abstract: We report a synchrotron in situ diffraction experiment exploring stress evolution during compression of interpenetrating-phase nanocomposites based on nanoporous gold and polymer.While previous experiments providedindirect indication of local flow conditions based on macroscopic effective flow stress and micromechanicsmodels such as Gibson-Ashby scaling law, the lattice parameter data of our experiment access the flow stress directly.At small structure size we find excellent agreement with previous reports, supporting thematch betweenmaterial andmodel of those studies. Yet, deviations at larger structure size suggest that coarsening generates defectsin metal network structure that are ignored by standard models.

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Contributing Institute(s):

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

Research Program(s):

1. 6G3 - PETRA III (POF3-622) (POF3-622)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2017

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Database coverage:
; ; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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