The Interface Characterization of Laminar Nickel-Alumina Composites

  • Dragana Janković
  • Dušan Kićević
  • Mirjana Mitkov


The objective of the present work is to examine the different aspects of the interfaces existing in three and five layers laminar composites. A12O3, Ni and Ni + A12O3 (microinfiltrated bonding layer; Ni:Al2O3-25:75 wt% mixture) layers were obtained by tape casting. The characterization of laminated A12O3 / Ni+ A12O3 / and A12O3/ Ni+ A12O3 / Ni / Ni+ A12O3 / A12O3 composites produced by pressureless sintering, included SEM, ED AX, Rö and bending tests examinations. The nature of interface between the individual layers of the composites, as well as nickel particles in alumina matrix (microinfiltrated laminae), has been discussed. Bonding quality, interaction between cracks and nickel particles, laminar composite architecture and thermal residual stresses as well influence the strength of the composites.


Spinel Phase Nickel Particle Bonding Layer Pressureless Sinter Spinel Formation 
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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Dragana Janković
    • 1
  • Dušan Kićević
    • 1
  • Mirjana Mitkov
    • 1
  1. 1.Institute of Nuclear Science “Vinča”Material Science LaboratoryBelgradeYU

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