| 共沉淀法制备Tb_3Sc_2Al_3O_(12)纳米粉体的研究 |
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| 引用本文： | 沈正皓,苗如林,刘亚津,刘丽娜,李春.共沉淀法制备Tb_3Sc_2Al_3O_(12)纳米粉体的研究[J].长春理工大学学报,2017,40(4). |
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| 作者姓名： | 沈正皓 苗如林 刘亚津 刘丽娜 李春 |
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| 作者单位： | 长春理工大学 材料科学与工程学院,长春,130022 |
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| 基金项目： | 国防科工局项目，吉林省科技厅项目 |
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| 摘 要： | 采用共沉淀法制备TSAG纳米粉体,确定粉体制备的最佳工艺条件。以NH_4HCO_3为沉淀剂,通过反滴定法获得了TSAG前驱体,通过TG-DSC,XRD,FTIR和SEM测试手段对不同温度和不同保温时间下煅烧的粉体进行了表征。结果表明:前驱体在800℃时为非晶态,在800℃~900℃之间形成中间晶相TbScO_3和TbAlO_3,1200℃下煅烧6h得到TSAG粉体,所得到的TSAG纳米粉体纯度高、粒径分布均匀,晶粒尺寸约50nm。
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| 关 键 词： | 共沉淀法 TSAG 物相结构 |
Study on Preparation of Terbium Scandium Aluminum Garnet Nano-powders by Co-precipitation Method |
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| SHEN Zhenghao,MIAO Rulin,LIU Yajin,LIU Lina,LI Chun.Study on Preparation of Terbium Scandium Aluminum Garnet Nano-powders by Co-precipitation Method[J].Journal of Changchun University of Science and Technology,2017,40(4). |
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| Authors: | SHEN Zhenghao MIAO Rulin LIU Yajin LIU Lina LI Chun |
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| Abstract: | TSAG nano powders were prepared by co-precipitation method, and the optimum technological conditions of powder preparation was decided. TSAG precursor was synthesized by back titration method with NH4HCO3 as precipi-tant. Powders calcined at different temperature and different holding time were characterized by thermal analyzer,X-ray diffraction, infrared spectrometer and scanning electron microscopy. The results showed that the precursor was amor-phous at 800℃, intermediate phase TbScO3 and TbAlO3 were formed between 800℃～900℃, the TSAG powders which were obtained by calcining at 1200℃ for 6h had high purity and homogeneous particles size about 50nm. |
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| Keywords: | Co-precipitation method TSAG Phase structure |
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