高压物理学报

NiO的高压结构和等温状态方程研究

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柳雷 ¹^,² , 李晓东 ¹ , 李延春 ¹ , 唐玲云 ¹ , 刘景 ¹ , 毕延 ²

高压物理学报 | 2009,23(3): 209-214

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高压物理学报 | 2009 , 23 (3) : 209 -214

NiO的高压结构和等温状态方程研究

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柳雷¹^,², 李晓东¹, 李延春¹, 唐玲云¹, 刘景¹, 毕延²

作者信息

^1.中国科学院高能物理研究所同步辐射实验室，北京　100049

^2.中国工程物理研究院流体物理研究所，冲击波物理与爆轰物理国防科技重点实验室，四川绵阳　621900

通讯作者:

刘景（1950—），女，研究员，博士生导师，主要从事材料高压物性研究. E-mail：liuj@ihep.ac.cn

作者简介:

柳雷（1982—），男，硕士研究生，主要从事材料高压物性研究. E-mail：leoleu@ihep.ac.cn

The High Pressure Structure and Isothermal Equation of State of NiO up to 67 GPa

Lei LIU¹^,², Xiao-Dong LI¹, Yan-Chun LI¹, Ling-Yun TANG¹, Jing LIU¹, Yan BI²

Affiliations

^1.Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

^2.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China

出版时间: 2009-06-15

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摘要

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运用金刚石对顶砧（Diamond Anvil Cell，DAC）技术，以液氩作为传压介质，在最高压力为67 GPa的压力范围内对NiO进行了原位的同步辐射X射线衍射研究。在整个实验过程中，并未发现第一类结构相变，也没有发现T. Sasaki等预测的在60 GPa左右轴比c/a随压力的变化率而突然增大的现象，且此压力范围内NiO的结构畸变程度随压力的变化趋势相比以前的研究结果要平缓一些。用三阶的Brich-Murnaghan方程对实验数据进行拟合，得到的体弹模量及其对压力的一阶导数分别为B₀=195（4）GPa和B₀′=5.3（2）。

关键词

NiO / 金刚石对顶砧加载 / X射线衍射 / 晶体结构 / 状态方程

Abstract

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The high-pressure structure and isothermal equation of state of NiO were investigated up to 67 GPa by in situ synchrotron X-ray diffraction in a diamond anvil cell using argon as the pressure medium. No phase transition was found in this pressure range, nor the the pressure coefficient of axial ratio c/a became larger suddenly at about 60 GPa which was predicted by T. Sasaki. Our experiments showed that the distortion of the structure under pressure was slacker than previous results. We fit the data points to the three-order Brich-Murnaghan EOS, which resulted in a bulk modulus of B₀=195 (4) GPa with its pressure derivative B₀′=5.3 (2).

Key words

NiO / diamond anvil cell / X-ray diffraction / crystal structure / EOS

引用本文

柳雷, 李晓东, 李延春, 唐玲云, 刘景, 毕延. NiO的高压结构和等温状态方程研究. 高压物理学报, 2009 , 23 (3) : 209 -214 .

Lei LIU, Xiao-Dong LI, Yan-Chun LI, Ling-Yun TANG, Jing LIU, Yan BI. The High Pressure Structure and Isothermal Equation of State of NiO up to 67 GPa[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (3) : 209 -214 .

基金

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国家自然科学基金(10676034)
科技部973项目(2005CB724400)

参考文献

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2009年第23卷第3期

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接收时间：2008-03-18
首发时间：2026-10-30
出版时间：2009-06-15

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出版历史

收稿日期：2008-03-18
修回日期：2008-05-05

基金

国家自然科学基金(10676034)

科技部973项目(2005CB724400)

作者信息

^1.中国科学院高能物理研究所同步辐射实验室，北京　100049

^2.中国工程物理研究院流体物理研究所，冲击波物理与爆轰物理国防科技重点实验室，四川绵阳　621900

通讯作者:

刘景（1950—），女，研究员，博士生导师，主要从事材料高压物性研究. E-mail：liuj@ihep.ac.cn

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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