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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)
Corresponding Author[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
AbstractNonhydrostatic 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.
Subject AreaPhysics
Indexed BySCI ; ADS
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
WOS IDWOS:000274327000002
ADS Bibcode2010EPJB...73..321C
ADS URLhttps://ui.adsabs.harvard.edu/abs/2010EPJB...73..321C
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2010EPJB...73..321C/citations
Citation statistics
Cited Times:4 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
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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