Journal of Materials Science

, Volume 26, Issue 18, pp 5067–5074 | Cite as

Transient liquid-phase sintering of ceramic-reinforced Fe-based composites

  • S. J. Yankee
  • B. J. Pletka


The microstructural development of ceramic-reinforced iron-based composites has been studied. The composites were fabricated via powder metallurgy and liquid-phase sintering, a processing route which achieves near-net-shape with good ceramic particulate dispersion. Two matrix alloys were used, Fe-1 wt% C-1 wt% Si and Fe-2 wt% Cu; up to 30 wt% (≈36 vol%) yttria-stabilized zirconia in the form of ∼20 μm particles was added to these alloys. The microstructural evolution of these composite materials was studied by examining the densification rate and volume fraction of liquid phase as a function of time. Different particle/matrix interfaces developed in the two composites. A glassy silicon-rich layer formed in the Fe-1C-1Si-YSZ composites and a more limited crystalline layer was found in the Fe-2Cu-YSZ composites.


Polymer Zirconia Liquid Phase Composite Material Microstructural Development 
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Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • S. J. Yankee
    • 1
  • B. J. Pletka
    • 1
  1. 1.Department of Metallurgical and Materials EngineeringMichigan Technological UniversityHoughtonUSA

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