Abstract
ZnO/Zn 2SiO 4/SiO 2 composite pigments with nano-sized α-Zn 2SiO 4 interface phase were synthesized by a simple solid-state reaction method. It was found that the composite pigments exhibit significant improvement on the spectral reflectance and the proton radiation-stability compared with the pure ZnO pigment. The investigations have demonstrated that the enhancements on the spectral reflectance and the radiation-stability are attributed to the introduction of willemite Zn 2SiO 4 interface phase on the surface of ZnO matrix particles. In addition, the enhancement mechanisms of radiation-stability for ZnO/Zn 2SiO 4/SiO 2 composite pigments were discussed.
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