【摘要】 本文采用化学均相共沉淀法,以Y(NO3)3.6H2O、Al(NO3)3.9H2O和Yb(NO3)3.5H2O为原料,尿素作为沉淀剂,聚乙二醇400为表面活性剂,制备了Yb:YAG陶瓷纳米粉体。利用扫描电镜、X射线衍射对纳米陶瓷粉体的形貌、物相结构进行了分析。结果表明:化学反应过程中添加一定量的表面活性剂,能获得尺寸均匀、分散性好、无明显团聚的纳米粉体。更多还原

【Abstract】 Use the Y(NO3)3.6H2O,Al(NO3)3.9H2O and Yb(NO3)3.5H2O as the raw material to prepare the Yb:YAG ceramic nano-powders by homogeneous precipitation method,with Urea as the precipitant,adding a certain amount of polyethylene glycol 400 as a Surface-Active Agent.The morphology,and the phase structure of prepared ceramic nano-powders were characterized by scanning electron microscopy,X-ray diffraction and so on.The results show that adding a certain amount of surfactant in the chemical reaction process can get refinement ceramic powder which has uniform size and well dispersibility.更多还原