Indentation Testing of an Al2O3/Al2O3 + ZrO2 Layered Composite


Article Preview

Micro- and macro-hardness of the individual layers of an Al2O3 / Al2O3 + ZrO2 layered composite have been investigated. The indentation load size effect has been studied in a range of indentation load of 25 mN – 100 N using depth sensing indentation technique and conventional Vickers hardness testers. Fracture toughness values of the layers have been measured using indentation fracture method. The effect of residual stresses on the KIC value has been analyzed.



Edited by:

J. Dusza, R. Danzer and R. Morrell




P. Zimovčák et al., "Indentation Testing of an Al2O3/Al2O3 + ZrO2 Layered Composite", Key Engineering Materials, Vol. 290, pp. 316-319, 2005

Online since:

July 2005




[1] Dusza J., Steen M.: Fractography and Fracture Mechanics Property Assessment of Advanced Structural Ceramics. International Materials Reviews, 44, 1999, pp.165-216.


[2] F. Toschi, C. Melandri, P. Pinasco, E. Roncari, S. Guicciardi, G. De Portu, Influence of Residual Stress on the Wear Behaviour of Alumina/Alumina-Zirconia Laminated Composites, J. Am. Ceram. Soc. 86.


[9] (2003) 1547-53.

[3] Helen M. Chan: Layered ceramics: Processing and Mechanical Behavior, Materials Science, 1997, p.249.

[4] DIN 20339 Universalhärteprüfung, October (1997).

[5] Anstis G. R., Chantikul P., Lawn B.R., Marshall D.B.: J. Amer. Ceram. Soc., 1981, vol. 64, p.533.