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Journal of Materials Science

, Volume 29, Issue 23, pp 6069–6075 | Cite as

Silicon-aluminium network composites fabricated by liquid metal infiltration

  • Yuyong Chen
  • D. D. L. Chung
Article

Abstract

This paper provides a new method for fabricating interpenetrating silicon-aluminium network metal-matrix composites. This method involves the infiltration of an aluminium-silicon alloy (Al-12Si-1Mg or Al-30Si-1Mg) liquid into a silicon particle (50 vol %) preform. The silicon particles were partially dissolved by the liquid alloy and, together with silicon contributed by the original Al-Si-Mg matrix, resulted in an Si network after solidification. The network composites were metallurgically sound, with no porosity, and exhibited a thermal expansion coefficient down to 7.7×10−6 °C−1 at 50–100 °C, compressive strength up to 580 MPa, tensile strength up to 160 MPa and Vickers hardness up to 390.

Keywords

Polymer Silicon Porosity Tensile Strength Thermal Expansion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • Yuyong Chen
    • 1
  • D. D. L. Chung
    • 1
  1. 1.Composite Materials Research LaboratoryState University of New York at BuffaloBuffaloUSA

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