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Hot isostatic pressing of optically active Nd:YAG powders doped by a colloidal processing route

AuthorsSuárez, Marta ; Fernández, Adolfo ; Menéndez, José Luis ; Nygren, M.; Torrecillas, Ramón ; Zhao, Z.
KeywordsTransparent ceramics
Colloidal route
Hot isostatic press
Issue DateApr-2010
CitationJournal of the European Ceramic Society 30(6): 1489-1494 (2010)
AbstractIn this work, 1 at.% Nd doped Yttrium Aluminum Garnet Y3Al5O12 (YAG) nano-sized powder prepared by colloidal route was investigated thoroughly concerning agglomeration control and preparation of transparent ceramic by post-HIP. Electrostatic and mechanical deagglomeration process followed by freeze-drying turned out to be an effective method to alleviate agglomeration, yielding a powder with a homogeneous particle size distribution around 100 nm. Transparent Nd:YAG ceramic samples have been successfully prepared by post-HIP without the aid of sintering additives. The optical properties varied markedly with the sintering and hot isostatic pressing conditions used. In-line transmittance values of 56% at 680 nm and close to 80% in the infrared region were recorded.
Description6 páginas, 7 figuras, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.1016/j.jeurceramsoc.2009.12.006
Appears in Collections:(CINN) Artículos
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