| 吸附法测定U3O8粉末比表面积 |
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| 引用本文： | 邵旭平,陶精言,张慧中,张建华,高峰,王良清. 吸附法测定U3O8粉末比表面积[J]. 原子能科学技术, 2004, 38(4): 366-369 |
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| 作者姓名： | 邵旭平 陶精言 张慧中 张建华 高峰 王良清 |
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| 作者单位： | 兰州核燃料厂,甘肃,兰州,732850 |
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| 摘 要： | 基于金属氧化物粉末在低温及适宜压力下的单分子吸附平衡，本工作以BET理论为依据，以氮气为吸附质，研究液氮温度下U3O8粉末对N2的吸附行为，测量因吸附引起的压力变化，采用定量气体体积标定单分子吸附表面积，确定工作曲线的斜率和截距．测定U3O8粉末样品的比表面积。方法的精密度优于11％。
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| 关 键 词： | 吸附法 比表面积 标准体积球 八氧化三铀粉末 |
| 文章编号： | 1000-6931(2004)04-0366-04 |
Specific Surface Area Measurement of U3O8 Powder by Absorption |
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| SHAO Xu-ping,TAO Jing-yan,ZHANG Hui-zhong,ZHANG Jian-hua,GAO Feng,WANG Liang-qing. Specific Surface Area Measurement of U3O8 Powder by Absorption[J]. Atomic Energy Science and Technology, 2004, 38(4): 366-369 |
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| Authors: | SHAO Xu-ping TAO Jing-yan ZHANG Hui-zhong ZHANG Jian-hua GAO Feng WANG Liang-qing |
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| Abstract: | Based on the BET theory and the absorption behavior with a single molecular-form between metal oxide and N_2 at a favorable temperature, the specific area of U_3O_8 powder is determined. The variation of pressure due to the absorption was measured, and the slops and intercepts of the specification curve fitting are obtained by standardizing quantitative gas ball. Then the measured sample's area with the single molecular-form is calculated according to the pressure variation and fitting parameters. The precision of this method can be better than 11%. |
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| Keywords: | U_3O_8 powder specific surface area absorption quantitative gas ball |
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