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Particulate Composites by Powder Injection Molding

  1. Randall M. German

Published Online: 20 JUL 2012

DOI: 10.1002/9781118097298.weoc194

Wiley Encyclopedia of Composites

Wiley Encyclopedia of Composites

How to Cite

German, R. M. 2012. Particulate Composites by Powder Injection Molding. Wiley Encyclopedia of Composites. 1–11.

Author Information

  1. San Diego State University, San Diego, CA

Publication History

  1. Published Online: 20 JUL 2012


A few unique aspects of composite structures are attained using a powder injection molding (PIM) approach. First, since the materials are not melted, it is possible combine different materials into a single component. Significant flexibility is possible by adjusting the size, size ratio, amount, and particle shape. Thus, insoluble systems such as aluminum–silicon carbide or tungsten–copper are fabricated from mixed powders. An alternative is to injection-mold the high temperature phase and infiltrate the porous skeleton using liquid metal. But the most important advantage of powder routes is in the ability to fabricate very complicated shapes. This is the key advantage in microelectronics, human implants, and wear applications. It is in this regard that the PIM process excels.


  • metal powder;
  • ceramic powder;
  • cermet;
  • feedstock;
  • powder injection molding;
  • particulate composite;
  • sintering;
  • thermal management;
  • microstructure