Interface mechanics and toughness

  • K. K. Chawla


In this chapter, we discuss the role of interface in CMCs with special emphasis on mechanics of the fiber/matrix interface as related to that somewhat elusive property called toughness. We discussed the general features of interface and its importance in composites in Chapter 5. Now we look at the subject of tailoring this interface in CMCs with a view to obtaining an enhanced fracture toughness in these materials. We give some examples of the interface structure in some CMCs, briefly review the topic of toughness in different types of CMCs and then analyze in some detail the toughening mechanisms in fiber-reinforced ceramic matrix composites because of the importance of toughness enhancement in CMCs.


Energy Release Rate Interfacial Shear Stress Matrix Crack Ceramic Matrix Composite Interfacial Roughness 
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Copyright information

© K. K. Chawla 1993

Authors and Affiliations

  • K. K. Chawla
    • 1
  1. 1.Department of Materials and Metallurgical EngineeringNew Mexico Institute of Mining and TechnologySocorroUSA

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