Highly transparent Nd:Lu2O3 ceramics obtained by coupling slip-casting and spark plasma sintering

Rémy Boulesteix (1) , Romain Epherre (2) , S. Noyau (1) , Marion Vandenhende (2) , Alexandre Maitre (1) , Christian Sallé (3) , Guillaume Alombert-Goget (4) , Yannick Guyot (4) , Alain Brenier (4)

1 Axe 1 : procédés céramiques
2 SPCTS - Science des Procédés Céramiques et de Traitements de Surface
3 CILAS - Compagnie industrielle des lasers
4 ILM - Institut Lumière Matière [Villeurbanne]

A ceramic process coupling slip-casting of nanopowder suspensions and spark plasma sintering was used to prepare highly transparent Nd:Lu₂O₃ ceramic without any sintering aids. The influence of shaping by slip-casting on residual microstructural defects after sintering was investigated. Green compacts of nanopowders with homogeneous and submicron pore size promotes the elaboration of highly transparent ceramics with near-to-theoretical inline transmittance of 81.3% at 1060 nm. Spectroscopic properties of Nd:Lu₂O₃ ceramics were investigated at room temperature and 77 K.

Mots clés: Transparency; Nd:Lu2O3; Optical properties; Spark plasma sintering; Slip-casting

Domaines: Matériaux

Rémy Boulesteix, Romain Epherre, S. Noyau, Marion Vandenhende, Alexandre Maitre, et al.. Highly transparent Nd:Lu2O3 ceramics obtained by coupling slip-casting and spark plasma sintering. Scripta Materialia, 2014, 75, pp.54-57. ⟨10.1016/j.scriptamat.2013.11.016⟩. ⟨hal-00946183⟩