CAJ | 학술논문

以碳酸氢铵为沉淀剂,采用微通道反应与共沉淀法相结合的方法制备出了钇铝石榴石纳米粉体。实验考查了溶液浓度、pH值、Nd3＋掺杂等因素对合成纯相YAG纳米粉体的影响。结果表明增大沉淀剂浓度不利于纯相YAG粉体的制备,当沉淀剂浓度为0.4mol/L,Al 3＋浓度范围为0.1～0.4mol/L的条件下均得到纯相YAG纳米粉体;采用优化的实验条件,体系pH值维持在8左右,以2%（原子分数）的Nd3＋取代YAG中的Y3＋,900℃保温4h得到纯相Nd∶YAG粉体,粉体平均粒径在40nm左右,分布均匀,呈近球形。
이탄산경안위침정제,채용미통도반응여공침정법상결합적방법제비출료을려석류석납미분체。실험고사료용액농도、pH치、Nd3＋참잡등인소대합성순상YAG납미분체적영향。결과표명증대침정제농도불리우순상YAG분체적제비,당침정제농도위0.4mol/L,Al 3＋농도범위위0.1～0.4mol/L적조건하균득도순상YAG납미분체;채용우화적실험조건,체계pH치유지재8좌우,이2%（원자분수）적Nd3＋취대YAG중적Y3＋,900℃보온4h득도순상Nd∶YAG분체,분체평균립경재40nm좌우,분포균균,정근구형。
YAG nanopowders were preparated by microchannel reaction and co-precipitation method. The experi ment examine the solution concentration, pH, Nd3+ doped and other factors on the synthesis of pure phase YAG powders. The results show that: It is not conducive to the preparation of pure phase YAG powders by in creasing the concentration of precipitant, while precipitant concentration of 0.4mol/L, and Al3+ concentrations ranging from 0.1 to 0.4mol/L, that all obtain pure phase YAG powders; using the optimization experimental condition, the pH value was maintain at about 8, 2at % Nd3+ replace of Y3+ in YAG, after calcined by 900℃ for 4h, pure phase of Nd : YAG powders are obtained. The average particle size of powders was about 40nm, even ly distributed, and show a nearly spherical.