Preparation of Nanometer Nd3+,Y3+ Co-doped CaF2 Powder by Coprecipitation-azeotropic Distillation Technique
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第4期
论文作者：周志伟 梅炳初 SONG Jinghong YUAN Dan LI Weiwei
文章页码：827 - 829
摘 要：The synthesis of Nd3+,Y3+:CaF2 nanopowder was conducted by azeotropic distillation method,which effectively dehydrated hydrous CaF2 and prevented forming hard agglomerates.X-ray diffraction（XRD）,scanning electron microscopy（SEM）,scanning calorimetries-thermalgravimetry（DSC-TG）,Fourier transform infrared spectroscopy（FT-IR） and absorption spectroscopy were performed to characterize the powder properties.The experimental results showed that products obtained by azeotropic distillation were single phased,rather monodispersed,successfully prevented the hard agglomerate formation and effectively removed the residual water inside the as-prepared precipitate than that of the direct drying.The absorption spectra showed a wider and stronger absorption bands around 792 nm,which should be profitable for LD pumping.
周志伟1，梅炳初1，SONG Jinghong2，YUAN Dan1，LI Weiwei1
1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology2. Center of Materials Research and Analysis,Wuhan University of Technology
摘 要：The synthesis of Nd3+,Y3+:CaF2 nanopowder was conducted by azeotropic distillation method,which effectively dehydrated hydrous CaF2 and prevented forming hard agglomerates.X-ray diffraction（XRD）,scanning electron microscopy（SEM）,scanning calorimetries-thermalgravimetry（DSC-TG）,Fourier transform infrared spectroscopy（FT-IR） and absorption spectroscopy were performed to characterize the powder properties.The experimental results showed that products obtained by azeotropic distillation were single phased,rather monodispersed,successfully prevented the hard agglomerate formation and effectively removed the residual water inside the as-prepared precipitate than that of the direct drying.The absorption spectra showed a wider and stronger absorption bands around 792 nm,which should be profitable for LD pumping.
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