Nanodynamic mechanical analysis (nanoDMA) is performed on spark plasma sintered tantalum carbide composites reinforced with graphene nanoplatelets (GNPs). The addition of GNPs enhances damping (tan delta) at 25-100 Hz frequencies by up to 300%. It also improves damping behavior through energy-dissipating mechanisms, such as GNP bending, kinking and sliding. A model for correlating improvement in the damping behavior with the fracture toughness is presented. GNP energy-dissipating mechanisms are most effective in improving damping behavior when GNPs are dispersed uniformly.
Nanodynamic mechanical behavior of graphene nanoplatelet-reinforced tantalum carbide
Nanodynamisches mechanisches Verhalten von mit Graphen-Nanoplättchen verstärktem Tantalcarbid
Scripta Materialia ; 69 , 9 ; 678-681
2013
4 Seiten, 4 Bilder, 2 Tabellen, 19 Quellen
Article (Journal)
English