Influence of Multi-Walled Carbon Nanotube Addition on the Hardness of NiAl-CNT and NiAl3-CNT Composites
Keyword(s):
Nickel aluminides have shown great potential as high temperature structural materials. In this study, two classes of nickel aluminide were reinforced with 0.5wt% MWCNTs. Starting powders of nickel, aluminium and MWCNTs were ball milled together using a two stage milling regime and consolidated by spark plasma sintering. The effect of MWCNT reinforcement on the hardness of two classes of nickel aluminide was investigated. Microhardness values revealed a lack of dependence on densification for the NiAl3 composites. The microhardness values of NiAl-CNT reduced with MWCNT addition whereas microhardness values of NiAl3-CNT increased with MWCNT addition.
2013 ◽
Vol 69
(4)
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pp. 338-341
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Keyword(s):
2011 ◽
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2012 ◽
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