Fracture Behavior of Alumina/Monazite Multilayer Laminates
作者： Jennifer R. Mawdsley , Desiderio Kovar , John W. Halloran
DOI: 10.1111/J.1151-2916.2000.TB01278.X
关键词:
摘要: Monazite (LaPO4) has been proposed as an interphase to promote debonding between the reinforcement and matrix during fracture of oxide-based composites. The correlation behavior micromechanical properties in model alumina/monazite (Al2O3/LaPO4) multilayer laminates investigated this study. delamination energy (Gi) was dependent on crack length, which is consistent with previous results; initial value Gi ;10 J/m 2 . interfacial frictional sliding resistance increased normal stress interface increased. Using a Coulombic friction model, coefficient static Al 2O3 LaPO4 layers determined be 0.63. influence flaw size Al2O3 path predicted, using existing confirmed experimentally. results indicate that, addition satisfying energybased criteria, several other factors affect whether suitable for oxide
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