Please use this identifier to cite or link to this item: doi:10.22028/D291-34332
Title: Ni/Al-Hybrid Cellular Foams: An Interface Study by Combination of 3D-Phase Morphology Imaging, Microbeam Fracture Mechanics and In Situ Synchrotron Stress Analysis
Author(s): Luksch, Jutta
Jung, Anne
Pauly, Christoph
Derr, Ralf
Gruenewald, Patrick
Laub, Marc
Klaus, Manuela
Genzel, Christoph
Motz, Christian
Mücklich, Frank
Schaefer, Florian
Language: English
Title: Materials
Volume: 14
Issue: 13
Publisher/Platform: MDPI
Year of Publication: 2021
Free key words: hybride foam
open-cell foam
interfacial fracture toughness
micromechanics
synchrotron diffraction
hybride foam interface
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Nickel(Ni)/aluminium(Al) hybrid foams are Al base foams coated with Ni by electrodeposition. Hybrid foams offer an enhanced energy absorption capacity. To ensure a good adhering Ni coating, necessary for a shear resistant interface, the influence of a chemical pre-treatment of the base foam was investigated by a combination of an interface morphology analysis by focused ion beam (FIB) tomography and in situ mechanical testing. The critical energy for interfacial decohesion from these microbending fracture tests in the scanning electron microscope (SEM) were contrasted to and the results validated by depth-resolved measurements of the evolving stresses in the Ni coating during three-point bending tests at the energy-dispersive diffraction (EDDI) beamline at the synchrotron BESSY II. Such a multi-method assessment of the interface decohesion resistance with respect to the interface morphology provides a reliable investigation strategy for further improvement of the interface morphology.
DOI of the first publication: 10.3390/ma14133473
Link to this record: urn:nbn:de:bsz:291--ds-343327
hdl:20.500.11880/31520
http://dx.doi.org/10.22028/D291-34332
ISSN: 1996-1944
Date of registration: 13-Jul-2021
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Stefan Diebels
NT - Prof. Dr. Christian Motz
NT - Prof. Dr. Frank Mücklich
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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