高压物理学报

高压下碱卤晶体的三参量等温状态方程

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严祖同

高压物理学报 | 2006,20(1): 51-55

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高压物理学报 | 2006 , 20 (1) : 51 -55

高压下碱卤晶体的三参量等温状态方程

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严祖同

作者信息

安徽师范大学物理与电子信息学院，安徽芜湖　241000

作者简介:

严祖同（1939—），男，教授，主要研究方向为高温、高压状态方程和高压熔解规律.

An Isothermal Three-Parameter Equation of State Applied to Alkali Halide Crystals under High Pressures

Zu-Tong YAN

Affiliations

College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000, China

出版时间: 2006-03-05

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摘要

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由等温体积弹性模量的定义及其与压强关系的假设出发，导出了一个新的适用于高压下碱卤晶体的三参量等温状态方程。计算了室温下NaCl晶体在0~30 GPa压强范围内、CsCl晶体在0~40 GPa压强范围内的相对体积以及NaCl晶体在0~30 GPa压强范围内的等温体积弹性模量，计算结果与实验值一致。对等温体积弹性模量及其对压强的一阶、二阶导数与压强的关系进行了讨论，指出压强趋于无穷大时的等温体积弹性模量是常数。

关键词

状态方程 / 等温体积弹性模量 / NaCl晶体 / CsCl晶体 / 高压

Abstract

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From the definition of isothermal bulk modulus and an assumption of its relationship with the pressure, an isothermal three-parameter equation of state has been proposed, which is found to be applicable at high pressure. The proposed equation of state has been used to compute the pressure-volume behavior of NaCl crystal in the pressure range 0~30 GPa and CsCl crystal in the pressure range 0~40 GPa. The isothermal bulk modulus in the pressure range 0~30 GPa of NaCl crystal were also calculated. The results are in very good agreement with the experimental data. The pressure dependence of the isothermal bulk modulus B_T and its first- and second-order pressure derivative are discussed, and the bulk modulus increases continuously with the increasing pressure and has a finite value as p→∞.

Key words

isothermal equation of state / isothermal bulk modulus / NaCl crystal / CsCl crystal / high pressure

引用本文

严祖同. 高压下碱卤晶体的三参量等温状态方程. 高压物理学报, 2006 , 20 (1) : 51 -55 .

Zu-Tong YAN. An Isothermal Three-Parameter Equation of State Applied to Alkali Halide Crystals under High Pressures[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (1) : 51 -55 .

基金

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安徽省省级重点学科基金项目(2002 2DXK)
安徽省教育厅自然科学基金(2001KJ110)

参考文献

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参考文献引证文献

排序方式：

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2006年第20卷第1期

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接收时间：2004-10-21
首发时间：2026-11-01
出版时间：2006-03-05

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收稿日期：2004-10-21
修回日期：2004-11-19

基金

安徽省省级重点学科基金项目(2002 2DXK)

安徽省教育厅自然科学基金(2001KJ110)

作者信息

安徽师范大学物理与电子信息学院，安徽芜湖　241000

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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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