钕铁硼的冲击压缩特性

李巧燕; 施尚春; 杨金文; 孙悦

doi:10.11858/gywlxb.2007.02.016

钕铁硼的冲击压缩特性

doi: 10.11858/gywlxb.2007.02.016

李巧燕^1,2,
施尚春^2,,
杨金文^1,2,
孙悦¹

1.
四川大学原子与分子物理研究所，四川成都 610065；
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实验室，四川绵阳 621900

详细信息

通讯作者:
施尚春

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出版历程
- 收稿日期: 2006-06-22
- 修回日期: 2006-09-21
- 发布日期: 2007-06-05

Shock Compression Behavior of Nd2Fe14B

1.
Institute of Atom and Molecule, University of Sichuan, Chengdu 610065, China;
2.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China

More Information

Corresponding author: SHI Shang-Chun

摘要

摘要: 利用二级轻气炮对恒磁体钕铁硼进行冲击压缩，采用阻抗匹配法进行测量，获得了平均初始密度为7.346 g/cm3的钕铁硼Hugoniot关系数据。实验结果表明，该种钕铁硼在19~78 GPa范围内，其D-up满足线性变化关系，即：C0、分别为3.686 km/s、1.059，是一种稳定的压缩过程，其间没有相变产生。而较小的值表明该种钕铁硼材料偏向于疏松体结构，且容易被压缩。同时实验结果也为其状态方程和脉冲功率源等方面的研究工作提供了可资参考的实验参数。
- 钕铁硼 /
- Hugoniot /
- 冲击压缩
Abstract: The shock compression properties for permanent magnet Nd2Fe14B were studied in the shock pressure range of 19~78 GPa, using a two-stage light-gas gun. The Hugoniot data of Nd2Fe14B with initial average density 7.346 g/cm3 were measured by the impedance matching method. The experiment results indicate a good linearity between the shock wave velocity and the particle velocity, i. e. C0, are obtained as 3.686 km/s, 1.059. Shock compression curve in the Nd2Fe14B shows a stable compression course and there is no evidence phase transition in present pressure range. The small displays that the Nd2Fe14B material leans to loosen state and is prone to compression. At the same time, it also provides corresponding experiment parameters for calculation of EOS and application of pulse power resource.
- Nd2Fe14B /
- Hugoniot /
- shock compression

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参考文献(8)

Kulterman R W, Neilson F W, Benedick W B. Pulse Generator Based on High Shock Demagnetization of Ferromagnetic Material [J]. J Appl Phys, 1958, 29(3): 500-501.

Shkuratov S I, Talantsev E F, Dickens J C, et al. Longitudinal-Shock-Wave Compression of High-Energy Hard Ferromagnet: The Pressure-Induced Magnetic Phase Transition [J]. Appl Phys Lett, 2003, 24: 1248-1250.

Shkuratov S I, Talantsev E F, Dickens J C, et al. Shock Wave Demagnetization of BaFe12O19 Hard Ferrimagnetics [J]. J Appl Phys, 2002, 91: 3007-3009.

Shkuratov S I, Talantsev E F, Dickens J C, et al. Transverse Shock Wave Demagnetization of Nd2Fe14B High-Energy Hard Ferromagnetics [J]. J Appl Phys, 2002, 92: 159-163.

Shi S C, Chen P S, Huang y, et al. Study on Compression of Liguids Nitrogen and Carbon Monoxide [J]. Chinese Journal of High Pressure Physics, 1999, 13(4): 205-214. (in Chinese)

施尚春, 董石, 黄跃, 等. 液态N2、CO冲击压缩特性探究 [J]. 高压物理学报, 1999, 13(4): 205-214.

Jing F Q. Introduction to Experimental Equation of State (2nd ed) [M]. Beijing: Science Press, 1999. (in Chinese)

经福谦. 实验物态方程导引(第2版) [M]. 北京: 科学出版社, 1999.

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