Synthesis of Ytterbium-Doped Yttrium Aluminum Garnet Laser Ceramic Nano-Powders by Carbonate Altogether Precipitation Method

Abstract

Yb:YAG laser ceramic nanopowders were synthesized by the carbonate altogether precipitation method, and the thermal properties with structure and morphology characterized and analyzed by the measurements of TG-DTA, XRD, IRS, SEM. The results show that well-crystallized Yb:YAG nanopowders calcined at 900°C are obtained with higher sintering performance and purity, and the average diameter is in the range of 100 nm. The crystalline size grew with the increase of the heat treatment temperature. The size of powder calcined at 1100°C is about 70-150 nm with higher purity, regular shape and even particle size distribution, which is favorable for good sinterability of Yb:YAG ceramics.Key words: Yb; YAG laser ceramic powders; nanopowders synthesis; carbonate altogether precipitation method;