| 掺杂钕的磷酸铈独居石固化体合成研究 |
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| 引用本文： | 马辉,陈泉水,梁磐仪,郁兴国,刘晓东,任广元.掺杂钕的磷酸铈独居石固化体合成研究[J].陶瓷学报,2012,33(1):1-5. |
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| 作者姓名： | 马辉 陈泉水 梁磐仪 郁兴国 刘晓东 任广元 |
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| 作者单位： | 1. 东华理工大学核资源与环境省部共建国家重点实验室培育基地,江西南昌330013;东华理工大学材料科学与工程系,江西抚州344000
2. 东华理工大学材料科学与工程系,江西抚州,344000 |
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| 摘 要： | 采用共沉淀法合成了掺杂钕元素的独居石固化体。利用X射线衍射仪,扫描电子显微镜,电子探针等现代分析技术研究了固化体的化学组成和微观结构特征。结果表明,合成了单斜晶系掺杂钕元素的独居石;固化体结构紧密,孔隙较少,晶体发育良好;由于温度影响存在0.2~1.5μm的颗粒状晶体和较大的层片状晶体;合成的固化体钕元素的掺杂量为3wt%左右。制备的固化体具有良好的机械,化学稳定性,符合高放废物(high-level waste,简称HLW)地址处置固化体的基本要求。
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| 关 键 词： | 独居石 钕 CeP04 合成 |
Synthesis of Cerium Orthophosphate (Monazite) Doped with Nd |
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| Affiliation: | MA Hui 1,2 CHEN Quanshui 1,2 LIANG Panyi 1 YU Xingguo 1 LIU Xiaodong 1.2(1.Department of Material Science and Engineering,East China Institute of Technology,Fuzhou Jiangxi 344000,China; 2.Key Laboratory of Nuclear Resources and Environment of Ministry of Education,East China Institute of Technology,Nanchang Jiangxi 330013,China) |
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| Abstract: | The monazite-based waste form doped with Nd was synthesized by co-precipitation.The chemical composition and microstructure of monazite were tested by the X-ray diffraction,scanning election microscopy and electron probe microanalysis.The result showed that the monoclinic monazite ceramic was formed;and the high density ceramic contained granular crystals and larger lamellar crystals,0.2～1.5μm in grain size;it was doped with 3wt% Nd.The ceramic satisfies the basic requirements for geological disposal of HLW. |
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| Keywords: | monazite neodymium CeP04 synthesis |
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