| Gd2Zr2O7烧绿石的高温高压快速合成 |
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| 引用本文： | 毛雪丽,唐敬友,易发成,钟宇宏,刘莉,卢喜瑞. Gd2Zr2O7烧绿石的高温高压快速合成[J]. 西南科技大学学报, 2011, 26(2): 5-9 |
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| 作者姓名： | 毛雪丽 唐敬友 易发成 钟宇宏 刘莉 卢喜瑞 |
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| 作者单位： | 1. 西南科技大学理学院,四川绵阳,621010
2. 西南科技大学核废物与环境安全国防重点学科实验室,四川绵阳,621010 |
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| 基金项目： | 国家自然科学基金(51074131); 国防基础科研计划(B3120110001) |
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| 摘 要： | 为了研究Gd2Zr2O7烧绿石的合成条件,以Gd2O3,ZrO2混合粉体为原料,在1 773 K的温度、3 GPa和5.2 GPa的压力及10～30 min的保温保压时间内,进行了高温高压实验。借助于XRD,SEM,IR等分析,对合成样品结构、形貌等进行表征,结果表明:在1 773 K的高温、5.2 GPa的高压和10 min的保温保压条件下可合成单一物相的Gd2Zr2O7立方烧绿石。为固化锕系核素的陶瓷基材合成及其固化体的制备提供了一种快速高效的方法。
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| 关 键 词： | Gd2Zr2O7烧绿石 高温高压 合成 放射性废物固化 |
Rapid Synthesis of Gd_2Zr_2O_7 Pyrochlore at High Temperature and High Pressure |
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| MAO Xue-li,TANG Jing-you,YI Fa-cheng,ZHONG Yu-hong,LIU Li,LU Xi-rui. Rapid Synthesis of Gd_2Zr_2O_7 Pyrochlore at High Temperature and High Pressure[J]. Journal of Southwest University of Science and Technology, 2011, 26(2): 5-9 |
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| Authors: | MAO Xue-li TANG Jing-you YI Fa-cheng ZHONG Yu-hong LIU Li LU Xi-rui |
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| Affiliation: | MAO Xue-li~1,TANG Jing-you~2,YI Fa-cheng~2,ZHONG Yu-hong~1,LIU Li~1,LU Xi-rui~2 (1.School of Science,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China,2.Key Discipline Laboratory of National Defense on Nuclear Wastes and Environmental Safety,China) |
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| Abstract: | To investigate the synthesis conditions of Gd_2Zr_2O_7 pyrochlore,experiments were conducted at a temperature of 1 773 K,pressures of 3 GPa and 5.2 GPa and holding time of 10 ~ 30 min using the mixed powders of Gd_2O_3 and ZrO_2 as starting materials.By means of XRD,SEM and IR,the structure and morphology of as - synthesized samples were characterized.The results show that single phase Gd_2Zr_2O_7 compounds with cubic pyrochlore structure were successfully synthesized at 1 773 K and 5.2 GPa in 10 min.This w... |
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| Keywords: | Gd_2Zr_2O_7 pyrochlore High pressure and high temperature Synthesize Radioactive waste |
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