High-Performance Metal/Carbide Composites with Far-From-Equilibrium Compositions and Controlled Microstructures.

ABSTRACT: The prospect of extending existing metal-ceramic composites to those with the compositions that are far from thermodynamic equilibrium is examined. A current and pressure-assisted, rapid infiltration is proposed to fabricate composites, consisting of reactive metallic and ceramic phases with controlled microstructure and tunable properties. An aluminum (Al) alloy/Ti₂AlC composite is selected as an example of the far-from-equilibrium systems to fabricate, because Ti₂AlC exists only in a narrow region of the Ti-Al-C phase diagram and readily reacts with Al. This kind of reactive systems challenges conventional methods for successfully processing corresponding metal-ceramic composites. Al alloy/Ti₂AlC composites with controlled microstructures, various volume

SUBMITTER: Hu L 

PROVIDER: S-EPMC5067586 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature