Optimization of Conditions of Preparation of YAG Nanopowders for Sintering of Translucent Ceramics
The agglomeration of YAG (Yttrium-Aluminum Garnet Y3Al5O12) nanopowders doped with various rare earth ions obtained by the coprecipitation and calcination route is a major problem if it is wished to exploit the nano-size properties such as the transparency of dispersions of the powders or low temperature sintering. Investigations to optimize the preparation process of powders for High Pressure-Low temperature Sintering (HPLS) of semi-translucent pellets was undertaken. The appropriate milling time to decrease the agglomeration was evaluated with the help of ZETA- potential measurement. The dependence of the agglomerate size against the time of hand milling was used to optimize the process.
Witold Łojkowski and John R. Blizzard, Urszula Narkiewicz and Janusz D. Fidelus
T. Chudoba et al., "Optimization of Conditions of Preparation of YAG Nanopowders for Sintering of Translucent Ceramics", Solid State Phenomena, Vol. 128, pp. 41-46, 2007