Investigation of the time-dependent behavior of cnt-filled epoxy using nanoindentation
- Epoxy/Carbon nanotube (CNT) composites are interesting materials that could be used in a wide variety of applications. In this study, CNT contents of 0.25, 0.5, 1 and 2 wt% were used for reinforcing epoxy. A nanoindentation device and a temperature regulating system were developed in order to investigate the effect of CNTs on the time-dependent properties of epoxy using relaxations and creep tests on the nano scale. The relaxation tests showed a significant shift for the relaxation spectrum towards shorter times with introducing a low CNT content of 0.25 wt%. Additionally, creep tests showed that both the holding time at a constant load and the unloading velocity have a major effect on the contact stiffness. However, there was no effect for the CNTs on the creep behavior with contents lower than 1 wt%, which was related to the presence of a percolation threshold around this value.
Autor*innen: | Karim Elabshihy |
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Koautor*innen: | Gerhard Kalinka |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2013 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | CNT; Epoxy; Nanoindentation; Time-dependent |
Veranstaltung: | Nanobrücken 2013 |
Veranstaltungsort: | Dresden, Germany |
Beginndatum der Veranstaltung: | 20.03.2013 |
Enddatum der Veranstaltung: | 22.03.2013 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 21.03.2016 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |