A simple method is developed for synthesizing nanopowder of neodymium-doped yttrium aluminum garnet (Nd:YAG) by coprecipitation with flushing (bubbling) by ammonia. Different methods are used to study the specimens obtained, such as thermogravimetry/differential scanning calorimetry, X-ray powder diffraction, infrared spectroscopy based on a Fourier transform, scanning electron microscopy. Results show that stoichiometric Nd:YAG powders may be prepared by calcination of a precursor at 900°C for 2 h. In addition, it is detected that a slow ammonia supply rate (5 – 10 ml/min) is favorable for forming Nd:YAG powders with a good structure and with an average particle size of ~70 nm. The technology developed by us does not use manual titration for synthesizing multibasic oxides, as a result of which this technology may be readily used on an industrial scale.
Refractories and Industrial Ceramics – Springer Journals
Published: Sep 23, 2014
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