Journal
CARBON
Volume 99, Issue -, Pages 384-397Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2015.12.041
Keywords
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Funding
- National Health and Medical Research Council (NHMRC) [GNT1087290]
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The influence of milling energy on the dispersion and evolution of multi-walled carbon nanotubes (MWCNTs) in titanium (Ti) metal matrix composites (TMCs) prepared via powder metallurgy has been investigated. High energy ball milling (HEBM) was employed to disperse MWCNTs (0.5 wt.%) into Ti matrix in two controlled ball milling processes: with and without in-situ formation of titanium carbide (TiC). Both types of the powder mixtures were then pressed under 40 MPa into green compacts and sintered in a high vacuum furnace at 1100 degrees C for 2 h. The evolution of MWCNTs during the fabrication process and the mechanical properties of the sintered composites were discussed in conjunction with the in-situ formation of nano-crystalline TiC. The mechanical properties of the composites consolidated from the powder mixtures with in-situ formed TiC during HEBM were significantly enhanced as opposed to composites consolidated from the powder mixtures without formation of TiC during HEBM. (C) 2015 Elsevier Ltd. All rights reserved.
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