Publications

Affichage de 21 à 25 sur 25


  • Article dans une revue

Influence of hydrothermal synthesis conditions on BNT-based piezoceramics

Jean-François Trelcat, Sophie d'Astorg, Philippe Champagne, Christian Courtois, Mohamed Rguiti, Anne Leriche

The Bi0.5Na0.5TiO3 perovskite (BNT) is a very promising lead-free candidate for piezoelectric applications. Nevertheless a low reproducibility is commonly reported for the solid state synthesized BNT. In this work, the hydrothermal synthesis was investigated to improve the BNT ceramics…

Journal of the European Ceramic Society, 2011, 31 (11), pp.1997-2004. ⟨10.1016/j.jeurceramsoc.2011.04.025⟩. ⟨hal-04283000⟩

  • Article dans une revue

Comparison of two molten flux process for the elaboration of textured PZT thin plates

Christian Courtois, Stéphanie Devemy, Philippe Champagne, Marc Lippert, Mohamed Rguiti, Anne Leriche, Daniel Chateigner, Emmanuel Guilmeau

In this paper, we describe a new protocol for the elaboration of textured PZT thin plates. This protocol is based on three steps: (i) powder synthesis, (ii) tape casting/lamination in green state and (iii) sintering/densification. Powder synthesis is operated through a specific molten flux method,…

Journal of the European Ceramic Society, 2007, 27 (13-15), pp.3779-3783. ⟨10.1016/j.jeurceramsoc.2007.02.160⟩. ⟨hal-04283089⟩

  • Communication dans un congrès

New considerations about the fracture mode of PZT ceramics

Olivier Guillon, Frédéric Thiebaud, Dominique Perreux, Christian Courtois, Philippe Champagne, Anne Leriche, J. Crampon

Proceeding of Euroceramics IX, 2004, Caen, France. ⟨hal-00020043⟩

  • Article dans une revue

New considerations about the fracture mode of PZT ceramics

Olivier Guillon, Dominique Perreux, Frédéric Thiebaud, Christian Courtois, Philippe Champagne, Anne Leriche, Jacques Crampon

Sintered bulk ceramics, such as PZT are brittle materials. This macroscopically implies a statistical distribution of the ultimate strengths, because defects, such as pores or cracks are responsible for the initiation of the specimen failure. Another aspect of this fracture phenomenon is the crack…

Journal of the European Ceramic Society, 2005, 25 (12), pp.2421-2424. ⟨10.1016/j.jeurceramsoc.2005.03.074⟩. ⟨hal-00019132⟩

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