| 氨水共沉淀法制备Nd∶Y2O3透明陶瓷纳米粉体 |
| Preparation of Nd∶Y2O3 Nanopowders for Transparent Ceramics by Ammonia Water Co-precipitation Method |
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| 摘要: 以Y2O3粗粉、Nd2O3、硝酸和氨水为原料，通过共沉淀法制备了Nd∶Y2O3透明陶瓷纳米粉体，利用热重/ 差热分析(TG/DTA)、红外光谱(FTIR)、粉末X射线衍射(XRD)、透射电镜(TEM)以及能谱分析(EDS)等方法对合成的Nd∶Y2O3纳米粉体进行了表征。结果表明，在前驱物中添加适量SO42-离子能减轻煅烧得到的Nd∶Y2O3纳米粉体粒子的团聚，使Nd∶Y2O3纳米粒子的粒度均匀并呈球形分布。在600～1 000 ℃煅烧3 h所得粉体粒子的粒径在20～40 nm之间，具有较好的分散性。 |
| 关键词: Nd∶Y2O3 纳米材料 共沉淀法 陶瓷 |
| 基金项目: |
| Abstract: Nd∶Y2O3 nanopowder for transparent ceramics was synthesized by a co-precipitation method using Y2O3 powders, Nd2O3, nitric acid and aqueous ammonia as raw materials. Nanopowders calcined at different temperatures were characterized by TG/DTA, FTIR, XRD, TEM and EDS techniques. The results indicate that appropriate amount of sulfate ions in the precursor can alleviate the degree of agglomeration of the calcined Nd∶Y2O3 nanopowder. Nd∶Y2O3 nanopowders calcined at 600～1 000 ℃ for 3 h were 20～40 nm in size with well dispersed and narrow distributed spherical morphology. |
| Keywords: Nd∶Y2O3 nanomaterials co-precipitation method ceramics |
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| 王能利,张希艳,刘全生,米晓云,王晓春.氨水共沉淀法制备Nd∶Y2O3透明陶瓷纳米粉体[J].无机化学学报,2008,24(7):1137-1141. |
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