Fabrication of Yb:YAG Transparent Ceramics Using Stearate Melting Derived Ultrafine Powders

Jin Sheng Li; Xu Dong Sun; Shao Hong Liu; Di Huo; Xiao Dong Li; Ji Guang Li; Qi Zhu; Mu Zhang

doi:10.4028/www.scientific.net/KEM.602-603.242

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Fabrication of Yb:YAG Transparent Ceramics Using...

Fabrication of Yb:YAG Transparent Ceramics Using Stearate Melting Derived Ultrafine Powders

Abstract:

Yb rare earth doped YAG ultrafine particles were synthesized by the stearate melting method using yttrium stearate, ytterbium stearate and aluminum tristearate as starting materials. The phase formation of Yb:YAG, the properties and the sintering activity of the powders were investigated by means of XRD, SEM, dilatometry and vacuum sintering. The results show that pure Yb:YAG nanopowders can be obtained by calcining the co-melted precursor at a relatively low temperature of 800 °C for 4 h. The powders calcined at 1000°C have better sintering activity than the powders calcined at other temperatures. For the Yb:YAG powders doping with 0.5% TEOS, the compact can be sintered to 99.2% of the theoretical density at 1600 °C and 99.7% at 1700 °C. The transparent Yb:YAG ceramics obtained by vacuum sintering at 1700 °C for 5 h exhibit a pore-free and uniform microstructure.

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Key Engineering Materials (Volumes 602-603)

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242-247

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https://doi.org/10.4028/www.scientific.net/KEM.602-603.242

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Online since:

March 2014

Authors:

Jin Sheng Li*, Xu Dong Sun, Shao Hong Liu, Di Huo, Xiao Dong Li, Ji Guang Li, Qi Zhu, Mu Zhang

Keywords:

Stearate Melting Method, Transparent Ceramics, Ultrafine Powders

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