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| Sr_2CeO_4物相形成过程的XRD分析 | |
| 引用本文： | 戴军,符史流,周甫方. Sr_2CeO_4物相形成过程的XRD分析[J]. 汕头大学学报(自然科学版), 2004, 19(2): 18-22 |
| 作者姓名： | 戴军 符史流 周甫方 |
| 作者单位： | 汕头大学物理系,汕头,515063 |
| 摘 要： | 采用X射线衍射技术分析了SrCO3和CeO2 (摩尔比 2∶1 )混合粉料经不同灼烧时间反应后的物相组成 .结果表明在Sr2 CeO4的形成过程中将出现不稳定的中间相SrCeO3,原始粉料CeO2 相会提前消失 ,SrCeO3与SrCO3反应生成最终稳定的目标相Sr2 CeO4.X射线衍射数据显示Sr2 CeO4属正交晶系 |
| 关 键 词： | Sr2CeO4 XRD 物相 晶系 |
| 文章编号： | 1001-4217(2004)02-0018-05 |
| 修稿时间： | 2003-10-15 |
XRD Analysis for the Formation of Sr2CeO4 Phase |
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| DAI Jun,FU Shi liu,ZHOU Fu fang. XRD Analysis for the Formation of Sr2CeO4 Phase[J]. Journal of Shantou University(Natural Science Edition), 2004, 19(2): 18-22 | |
| Authors: | DAI Jun FU Shi liu ZHOU Fu fang |
| Abstract: | The phase assembles of the SrCO 3 and CeO 2(2∶1)starting powder mixture calcined for different time were identified by X ray diffraction method.It was found that the intermediate phase SrCeO 3 was developed and the starting powder phase CeO 2 was lost in advance during the formation of Sr 2CeO 4.SrCeO 3 and SrCO 3 were converted to the final product Sr 2CeO 4.The results of XRD reveal that Sr 2CeO 4 belongs to orthorhombic crystal system. |
| Keywords: | Sr_2CeO_4 XRD crystal phase crystal system |
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