Synthesis and microstructure analysis of composite Nd:YAG/YAG transparent ceramics |
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| Authors: | Benxue Jiang Tongde Huang Yusong Wu Wenbin Liu Yubai Pan |
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| Institution: | Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China |
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| Abstract: | Transparent Nd:YAG/YAG composite ceramics are synthesized by solid-state reaction method using highpurity Y2O3,Al2O3,and Nd2O3 powders as raw materials.The mixed powder compacts are sintered at 1780 ℃ for 10 h under vacuum and annealed at 1450 ℃ for 20 h in air.The Nd:YAG/YAG ceramics exhibit a pore free structure with an average grain size of about 30 μm.The microstructure of the Nd:YAG/YAG composite transparent ceramics is studied and there is no interface between Nd:YAG and YAG ceramics.The Nd ion distribution in one grain is also studied,which shows that there is no segregation of Nd ions as in Nd:YAG crystals. |
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