Microstructural characteristics of Nd:YAG powders leading to transparent ceramics  

作　　者：张晓琳 刘铎 刘宏 王继扬 秦海明 桑元华 

机构地区：[1]State Key Laboratory of Crystal Materials, Shandong University

出　　处：《Journal of Rare Earths》2011年第6期585-591,共7页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (50702031, 60974117, 50990303, 50872070);the Excellent Young Investigators Award Foundation of Shandong Province (BS2009CL021);973 Program of China (2009CB930503)

摘　　要：We reported on the successful synthesis of the Nd：YAG （Nd：Y3Al5O12） nano-powders by using urea as the precipitant with the microwave assisted homogeneous precipitation （MAHP） method. The different microstructural characteristics of the Nd：YAG nano-powders were affected by the concentrations of （Y3＋＋Nd3＋） and Al3＋ （[Y3＋＋Nd3＋]=0.06 mol/L, [Al3＋]=0.1 mol/L）, aging time （6 d） and aging condition （in vessel）. The optimum microstructural characteristics of the high quality Nd：YAG nano-powders leading to transparent Nd：YAG ceramics including the pure YAG phase, the smallest crystallite size, a uniform crystallite size distribution, less density defects, uniform micro-components and the proper molar ratio of （Y3＋＋Nd3＋） and Al3＋ （0.6148） were discussed.We reported on the successful synthesis of the Nd：YAG （Nd：Y3Al5O12） nano-powders by using urea as the precipitant with the microwave assisted homogeneous precipitation （MAHP） method. The different microstructural characteristics of the Nd：YAG nano-powders were affected by the concentrations of （Y3＋＋Nd3＋） and Al3＋ （[Y3＋＋Nd3＋]=0.06 mol/L, [Al3＋]=0.1 mol/L）, aging time （6 d） and aging condition （in vessel）. The optimum microstructural characteristics of the high quality Nd：YAG nano-powders leading to transparent Nd：YAG ceramics including the pure YAG phase, the smallest crystallite size, a uniform crystallite size distribution, less density defects, uniform micro-components and the proper molar ratio of （Y3＋＋Nd3＋） and Al3＋ （0.6148） were discussed.

关 键 词：ceramics chemical synthesis X-ray diffraction defects rare earths 

分 类 号：TB383.3[一般工业技术—材料科学与工程]