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Mechanical Properties of Nanolaminate Ti3SnC2 Carbide Determined by Nanohardness Cartography

Authors

  • Christophe Tromas,

    Corresponding author
    1. 1Laboratoire de Physique des Matériaux, Université de Poitiers, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
      †Author to whom correspondence should be addressed. e-mail: christophe.tromas@univ-poitiers.fr
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  • Nadia Ouabadi,

    1. 1Laboratoire de Physique des Matériaux, Université de Poitiers, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
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  • Véronique Gauthier-Brunet,

    1. 1Laboratoire de Physique des Matériaux, Université de Poitiers, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
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  • Michel Jaouen,

    1. 1Laboratoire de Physique des Matériaux, Université de Poitiers, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
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  • Sylvain Dubois

    1. 1Laboratoire de Physique des Matériaux, Université de Poitiers, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
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  • G. Pharr—contributing editor

  • This work was financially supported by the “Agence National de la Recherche” in the PLASMAX project.

†Author to whom correspondence should be addressed. e-mail: christophe.tromas@univ-poitiers.fr

Abstract

Nanoindentation is used to measure hardness of Ti3SnC2, a recently synthesized nanolaminate carbide. Hardness cartography and optical microscopy are used to correlate hardness values and sample phases. An indentation size effect is observed, and a bulk hardness of 9.3 GPa is deduced for Ti3SnC2. Such a value is higher than most of hardness values reported for other nanolaminate carbides and nitrides. It is shown that an underestimation of the nanolaminate carbide hardness values likely results from the effect of grain boundaries.

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