以硫酸钪为母盐,尿素为沉淀剂,采用微波加热方式合成了水合碱式碳硫酸钪前驱体.用差式扫描量热法(DSC)、热重分析(TG)、红外光谱(IR)、X-射线衍射(XRD)分析了加热过程中前驱沉淀物的物相变化.采用高温煅烧和高能微波辐照两种方法制备了Sc2O3粉体.结果表明,将前驱沉淀物分别在1000℃煅烧3 h和在900℃微波辐照20 min,均制备出高纯、超细、粒度分布窄、分散性好、近似球形的Sc2O3纳米粉.
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