| 铝的等温状态方程 |
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| 引用本文： | 张剑,谢燕武,潘跃武,焦虎军,戴全钦,崔启良,刘景,邹广田.铝的等温状态方程[J].高压物理学报,2004,18(1):75-77. |
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| 作者姓名： | 张剑 谢燕武 潘跃武 焦虎军 戴全钦 崔启良 刘景 邹广田 |
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| 作者单位： | 1. 吉林大学超硬材料国家重点实验室,吉林,长春,130012
2. 中国科学院高能物理研究所同步辐射站,北京,100039 |
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| 基金项目： | 国家自然科学基金(10076005) |
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| 摘 要： | 采用原位高压同步辐射X射线衍射技术，利用金刚石对顶砧（DAC）装置产生高压，选用高纯NaCl粉末作为传压介质与标压物质，在室温下、21.5 GPa的压力范围内，测定了铝的等温状态方程。利用Murnaghan方程对实验结果进行了数值拟合，得到铝的零压体弹模量及其一级压力导数分别为B0=(77±2) GPa，B0′=4.8±0.3。该结果同相关文献资料报导的值在误差范围内符合得很好，略显得较大，这是由于传压介质NaCl的非静水压效应所致。在实验所达到的压力范围内，未发现明显的相变迹象。
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| 关 键 词： | 高压同步辐射 铝 等温状态方程 DAC |
| 文章编号： | 1000-5773(2004)01-0075-03 |
| 收稿时间： | 2003-07-11; |
| 修稿时间： | 2003年7月11日 |
Isothermal Equation of State of Aluminium |
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| ZHANG Jian,XIE Yan-Wu,PAN Yue-Wu,JIAO Hu-Jun,DAI Quan-Qin,CUI Qi-Liang,LIU Jing,ZOU Guang-Tian.Isothermal Equation of State of Aluminium[J].Chinese Journal of High Pressure Physics,2004,18(1):75-77. |
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| Authors: | ZHANG Jian XIE Yan-Wu PAN Yue-Wu JIAO Hu-Jun DAI Quan-Qin CUI Qi-Liang LIU Jing ZOU Guang-Tian |
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| Institution: | ZHANG Jian~1,XIE Yan-Wu~1,PAN Yue-Wu~1,JIAO Hu-Jun~1,DAI Quan-Qin~1,CUI Qi-Liang~1,LIU Jing~2,ZOU Guang-Tian~1 |
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| Abstract: | We have studied the equation of state (EOS) of aluminium by using energy dispersive synchrotron radiation X-ray diffraction technique at room temperature under in situ pressures up to 21.5 GPa. The data were fitted to Murnaghan equation of state and gave the bulk modulus and its first order derivative of aluminum: B0=(77±2) GPa, B0′= 4.8±0.3. We attributed the small deviation of our result from those in the literature to the nonhydrostatic effects caused by the pressure transmitting medium NaCl. Yet we have not found any convincing evidence for a phase transformation in the experimental pressure range. |
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| Keywords: | EDXRD aluminium isothermal EOS DAC |
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