| 共沉淀法制备AUGdC的工艺研究 |
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| 引用本文： | 许奎,刘锦洪,胡柏贵. 共沉淀法制备AUGdC的工艺研究[J]. 原子能科学技术, 2008, 42(2): 163-166. DOI: 10.7538/yzk.2008.42.02.0163 |
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| 作者姓名： | 许奎 刘锦洪 胡柏贵 |
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| 作者单位： | 中国核动力研究设计院 ;核燃料及材料国家级重点实验室，四川 ;成都 ;610041 |
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| 摘 要： | 本工作试验研究以碳酸铵溶液作沉淀剂从硝酸铀酰和硝酸钆的混合溶液中共沉淀AUGdC的方法。试验结果表明：控制铀浓度为300~400g/L、饱和碳酸铵溶液与硝酸铀酰溶液体积比为2.0~2.4等主要工艺参数，可制备出还原、压制和烧结性能良好的AUGdC粉末；UO2-Gd2O3芯块烧结密度达理论密度的96%以上，钆铀分布均匀，形成UO2-Gd2O3固溶体，平均晶粒尺寸在18μm以上。
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| 关 键 词： | 共沉淀, AUGdC, 2-Gd2O3芯块 ')" >UO2-Gd2O3芯块 |
| 文章编号： | 1000-6931(2008)02-0163-04 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2006-10-11 |
Preparation of AUGdC by Means of Co-precipitation |
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| XU Kui,LIU Jin-hong,HU Bai-gui. Preparation of AUGdC by Means of Co-precipitation[J]. Atomic Energy Science and Technology, 2008, 42(2): 163-166. DOI: 10.7538/yzk.2008.42.02.0163 |
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| Authors: | XU Kui LIU Jin-hong HU Bai-gui |
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| Affiliation: | National Key Laboratory for Nuclear Fuel and Materials, Nuclear Power Institute of China, Chengdu 610041, China |
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| Abstract: | The preparation of ammonium uranyl gadolinium carbonate (AUGdC) using (NH4)2CO3 solution from the mixed solution of UO2(NO3)2 and Gd(NO3)3 by means of co-precipitation was investigated. The experiment shows that controlling the feed concentration in the range of 300-400 g/L and the volume ratio of (NH4)2CO3 and UO2(NO3)2 solution in the range of 2.0-2.4 is feasible. The deoxidizing, pressing and sintering performances of preparated AUGdC powder are excellent. The sinter density of UO2-Gd2O3 pellets is above 96%T.D.(theoretical density), Gd and U distributing equally, forming the UO2-Gd2O3 solid solution, the average grain size is above 18 μm. |
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| Keywords: | co-precipitation ammonium uranyl gadolinium carbonate UO2-Gd2O3 pellets |
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