Microstructural Stability of Fibrous Composites Based on Magnesium-Lithium Alloys

  • M. Warwick
  • R. T. W. Clyne


A magnesium alloy containing about 11wt.% lithium is shown to be attractive as a matrix for composite materials. The degradation of carbon, alumina and silicon carbide in this matrix is examined, and the effect of lithium on silicon carbide monofilament and multifilament is examined using a vapour phase impregnation technique. Only silicon carbide whiskers are found to be stable in this matrix, although a barrier layer of yttria is shown to protect silicon carbide monofilament from attack.


Silicon Carbide Barrier Layer Boundary Penetration Silicon Carbide Whisker Lithium Vapour 
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Copyright information

© Springer Science+Business Media B.V. 1989

Authors and Affiliations

  • M. Warwick
    • 1
  • R. T. W. Clyne
    • 1
  1. 1.Department of Materials Science & MetallurgyUniversity of CambridgeCambridgeEngland

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