Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498813 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Transverse rupture strength of spark plasma sintered tantalum carbide (TaC) composites reinforced with long and short carbon nanotubes (CNTs) is reported. The rupture strength depends on the transformation behavior of the CNTs during spark plasma sintering, which is dependent on their length. The TaC composite with short nanotubes shows the highest specific rupture strength. Shorter CNTs transform into multi-layered graphene sheets between TaC grains, whereas long ones retain the tubular structure. Two-dimensionsal graphene platelets offer higher resistance to pull-out, resulting in delayed fracture and higher strength.
Related Topics
Physical Sciences and Engineering
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Authors
Debrupa Lahiri, Evan Khaleghi, Srinivasa Rao Bakshi, Wei Li, Eugene A. Olevsky, Arvind Agarwal,