Microstructural evolution and wear mechanism of Ti3AlC2 – Ti2AlC dual MAX phase composite consolidated by spark plasma sintering (SPS)

Abstract

In this work, we report the synthesis, deformation and tribological behaviour of a novel Ti3AlC2 – Ti2AlC MAX phase composite metallo-ceramic. The dual MAX phase composite was synthesized by spark plasma sintering (SPS) under a vacuum environment using Ti, Al, and C precursor powders. The deformation mechanism and the tribological behaviour were studied and analyzed by SEM, TEM, and Raman spectroscopy. The transition in friction and wear as well as the operative wear mechanisms involved were further discussed. Detailed analyses of the worn surface showed that Ti3AlC2 – Ti2AlC dual MAX phase composite is intrinsically self-lubricating.

Metadata

Authors/Creators:

Magnus, C.
Cooper, D.
Sharp, J.
Rainforth, W.M. https://orcid.org/0000-0003-3898-0318

© 2019 Elsevier. This is an author produced version of a paper subsequently published in Wear. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords:

MAX phases; Deformation; Frictional heating; Wear mechanism; Grain buckling

Dates: