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Interphase in Fiber-Reinforced Composites

  1. Frank R. Jones

Published Online: 20 JUL 2012

DOI: 10.1002/9781118097298.weoc116

Wiley Encyclopedia of Composites

Wiley Encyclopedia of Composites

How to Cite

Jones, F. R. 2012. Interphase in Fiber-Reinforced Composites. Wiley Encyclopedia of Composites. 1–6.

Author Information

  1. University of Sheffield, Sheffield, UK

Publication History

  1. Published Online: 20 JUL 2012


The interphase in a fiber-polymer composite arises from the interaction of the fiber surface with the matrix during processing. This can be a result of adsorption of matrix components or the presence of a polymeric coating (or sizing) on the fiber. The origin of an interphase in carbon, glass, and advanced polymer fiber composites is considered in detail. The role of an interphase on mechanical properties of a composite is also discussed. The concept of molecular engineering of the interphase is also introduced.


  • interphase formation fiber;
  • surface treatments;
  • sizing;
  • silanes;
  • stress transfer efficiency