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High-pressure radial X-ray diffraction study of osmium to 58 GPa
Chen, H; He, D; Liu, J; Li, Y; Peng, F; Li, Z; Wang, J; Bai, L刘景; Li YC(李延春); Bai LG(白利刚)
2010
发表期刊EUROPEAN PHYSICAL JOURNAL B
卷号73期号:3页码:321-326
通讯作者[Chen, H. ; He, D. ; Peng, F. ; Li, Z. ; Wang, J.] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China ; [Liu, J. ; Li, Y. ; Bai, L.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要Nonhydrostatic compression behavior of osmium (Os) was investigated up to 58.2 GPa using radial X-ray diffraction (RXRD) together with lattice strain theory in a diamond-anvil cell. The apparent bulk modulus of Os derived from RXRD data varies from 262 GPa to 413 GPa, depending on I, the orientation of the diffraction planes with respect to the loading axis. Fitting to the third-order Birch-Murnaghan equation of state, the RXRD data obtained at I = 54.7A degrees yields a bulk modulus K(0) = 390 +/- 6 GPa with pressure derivative K(') (0) fixed at 4. The ratio of differential stress to shear modulus t/G ranges from 0.024 to 0.029 at the pressures of 15.7-58.2 GPa. The yield strength was observed to increase with compression and reach the value of 11.7 GPa at the highest pressure. This confirms that Os is the strongest known pure metallic material compared with the reported stiff elemental metals such as W, Mo and Re. It was found that the apparent c/a ratio changed with the nonhydrostatic compression, as well as the orientation I in our experiments. Moreover, the aggregate moduli of Os at high pressure were determined from the RXRD measurements.
文章类型Article
学科领域Physics
研究领域[WOS]Physics
DOI10.1140/epjb/e2009-00436-4
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语种英语
WOS类目Physics, Condensed Matter
WOS记录号WOS:000274327000002
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236967
专题多学科研究中心
加速器中心
中国科学院高能物理研究所_中国散裂中子源
作者单位中国科学院高能物理研究所
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GB/T 7714
Chen, H,He, D,Liu, J,et al. High-pressure radial X-ray diffraction study of osmium to 58 GPa[J]. EUROPEAN PHYSICAL JOURNAL B,2010,73(3):321-326.
APA Chen, H.,He, D.,Liu, J.,Li, Y.,Peng, F.,...&白利刚.(2010).High-pressure radial X-ray diffraction study of osmium to 58 GPa.EUROPEAN PHYSICAL JOURNAL B,73(3),321-326.
MLA Chen, H,et al."High-pressure radial X-ray diffraction study of osmium to 58 GPa".EUROPEAN PHYSICAL JOURNAL B 73.3(2010):321-326.
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