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To further explore the material early-warning application of the luminescent coating,we demonstrated a new method by preparing a mixture layer of metallic erbium and oxidized zirconium(Er-ZrO_2 layer) using the double glow plasma surface alloying technology with Zr and Er co-sputtering under oxygen plasma exposure.The microstructure,composition and luminescence properties of the layers were characterized by scanning electron microscopy,X-ray diffraction,Raman and photoluminescence spectra.The dependence of the luminescence on the gradual concentration was studied.Results indicated that the contents of Zr,Er and O in the layer decreased gradually along the depth direction.The luminescence properties were concentration-dependent.X-ray diffraction analysis showed that the crystalline structure of ZrO_2 layer transferred from a mixture phase of tetragonal and monoclinic to pure monoclinic phase with the Zr-Er co-sputtering.The Raman bands of the layers depended on its local ZrO_2 crystal structures.Photoluminescence characteristics of Er-ZrO_2 layer revealed that the main emission bands were assigned to ~2H_(11/2)→~4I_(15/2) and ~4S_(3/2)→~4I_(15/2) transition under the excitation at 325 nm.The fact suggested that the plasma surface alloying is an effective method to obtain luminescent layer.
To further explore the material early-warning application of the luminescent coating, we demonstrated a new method by preparing a mixture layer of metallic erbium and oxidized zirconium (Er-ZrO 2 layer) using the double glow plasma surface alloying technology with Zr and Er co- sputtering under oxygen plasma exposure. microstructure, composition and luminescence properties of the layers were characterized by scanning electron microscopy, X-ray diffraction, Raman and photoluminescence spectra. dependence of the luminescence on the gradual concentration was studied. Results indicated that the contents of Zr, Er and O in the layer showed gradually along the depth direction. The luminescence properties were concentration-dependent. X-ray diffraction analysis showed that the crystalline structure of ZrO 2 layer transferred from a mixture phase of tetragonal and monoclinic to pure monoclinic phase with the Zr-Er co-sputtering. The Raman bands of the layers depended on its local ZrO 2 crystal s (2/2) → ~ 4I_ (15/2) and ~ 4S_ (3/2) → ~ 4I_ (15/2) transitions. The photoluminescence characteristics of Er-ZrO_2 layer revealed that the main emission bands were assigned to ~ under the excitation at 325 nm. The fact suggested that the plasma surface alloying is an effective method to obtain the luminescent layer.