Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen:
doi:10.22028/D291-32176
Titel: | Effect of Pretreatment on Interface Stability and Morphology of Ni/Al Hybrid Foams by in situ Microcantilever Fracture Experiment |
VerfasserIn: | Luksch, Jutta Jung, Anne Pauly, Christoph Motz, Christian Mücklich, Frank Schäfer, Florian |
Sprache: | Englisch |
Titel: | Procedia Structural Integrity |
Seiten: | 206-213 |
Verlag/Plattform: | Elsevier |
Erscheinungsjahr: | 2019 |
Titel der Konferenz: | ICSI 2019 The 3rd International Conference on Structural Integrity |
Freie Schlagwörter: | interface stability hybrid foam microbeam bending mircocantilever FIB tomography |
DDC-Sachgruppe: | 500 Naturwissenschaften 530 Physik 540 Chemie 620 Ingenieurwissenschaften und Maschinenbau 621.3 Elektrotechnik, Elektronik |
Dokumenttyp: | Konferenzbeitrag (in einem Konferenzband / InProceedings erschienener Beitrag) |
Abstract: | Ni/Al hybrid foams are a new class of innovative cellular composite materials consisting of open-cell aluminium (Al) foams electrochemically coated with nanocrystalline nickel (Ni). They may be used for lightweight construction elements or as crash energy absorbers. The Ni coating strengthens the Al foam achieving an up to ten times higher energy absorption capacities compared to the Al basis foam. Cellular materials such as foams provide a strong structure-property relationship as the macroscopic material properties strongly depend on the strut geometry and the material properties of the individual struts. The interface stability between the coating and the substrate foam is the dominant contribution in the strengthening mechanism of Ni/Al hybrid foams. Hence, micromechanical characterization is an important task for the design of components made of Ni/Al hybrid foams. A strong interface corresponds to a shear-stiff connection between substrate foam and coating, whereas a soft interface allows sliding between the two phases and hence reduces the buckling stiffness of individual foam struts resulting in lower strength and energy absorption capacity of the macroscopic foam. An increased critical energy release rate for interface cracking was revealed by in situ microcantilever bending tests prepared by focused ion beam (FIB) during bending tests in the scanning electron microscope (SEM) after the chemical pretreatment of the base foam. |
DOI der Erstveröffentlichung: | 10.1016/j.prostr.2019.08.028 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-321760 hdl:20.500.11880/29678 http://dx.doi.org/10.22028/D291-32176 |
Datum des Eintrags: | 15-Sep-2020 |
Bemerkung/Hinweis: | Procedia Structural Integrity, 17 (2019), S. 206-213 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Materialwissenschaft und Werkstofftechnik |
Professur: | NT - Prof. Dr. Christian Motz |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
1-s2.0-S245232161930232X-main.pdf | Effect of Pretreatment on Interface Stability and Morphology of Ni/Al Hybrid Foams by in situ Microcantilever Fracture Experiment | 1,33 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons