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Article Dans Une Revue Journal of Materials Processing Technology Année : 2008

Freeze-dried nanometric neodymium-doped YAG powders for transparent ceramics

Résumé

Nanometric neodymium-doped yttrium aluminium garnet (YAG) has been synthesised from freeze-dried precursors. The productswere calcined between 900 ◦C and 1200 ◦C under flowing oxygen. Powder morphologies were observed by TEM, SEM and laser granulometer. The oxides had small crystallite size. The best sinterability under vacuum at 1700 ◦C for 3h was obtained for precursors with the lowest amount of organic impurities as indicated by IR measurements. Hot isostatic pressing at 1700 ◦C in 160MPa of argon was applied to complete the sintering. Under these conditions, Nd:YAG ceramics with very good transmittance were obtained.

Dates et versions

hal-00297712 , version 1 (16-07-2008)

Identifiants

Citer

Y. Rabinovitch, Christine Bogicevic, Fabienne Karolak, D. Tetard, H. Dammak. Freeze-dried nanometric neodymium-doped YAG powders for transparent ceramics. Journal of Materials Processing Technology, 2008, 199, pp.314-320. ⟨10.1016/j.jmatprotec.2007.08.022⟩. ⟨hal-00297712⟩
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