Effect of sintering parameters on the densification and hardness of NiAl-CNTs composite

M. A. Awotunde, O. O. Ayodele, A. O. Adegbenjo, A. M. Okoro, M. B. Shongwe, P. A. Olubambi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Nickel aluminides have attracted considerable interest in the past few decades owing to its unique properties. In this work, nickel aluminide (NiAl) was formed in-situ during spark plasma sintering of admixed powders of nickel, aluminium and carbon nanotubes (CNTs) after ball milling. 1 wt % CNTs was incorporated into the intermetallic matrix and the effect of varying sintering parameters investigated, particularly the sintering temperature and pressure. Results showed that a combination of higher sintering temperature with lower pressure yielded better results than lower sintering temperature and higher pressure. Thus the former parameters yielded better densification and subsequently higher micro hardness values of the NiAl-CNTs composites as compared to the latter.

Original languageEnglish
Article number012007
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 8 Oct 2019
Event2019 4th International Conference on Energy Materials and Applications, ICEMA 2019 - Beijing, China
Duration: 11 May 201913 May 2019

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering


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