| Original Articles |
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Compressibility of Nickel Nanoparticle Chain |
| LI Xiao-Dong;TANG Ling-Yun;LI Yan-Chun;LIU Jing |
| Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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LI Xiao-Dong, TANG Ling-Yun, LI Yan-Chun et al 2007 Chin. Phys. Lett. 24 1671-1673 |
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Abstract We perform the high-pressure energy dispersive x-ray diffraction experiments of nickel nanoparticle chain using a synchrotron source under quasi-hydrostatic compression up to 44.7GPa. There is no phase transition over the pressure range. The bulk modulus K0, the first pressure derivative of bulk modulus K0' and the volume V0 are calculated from the pressure--volume data
using the Birch--Murnaghan equation of state. A decrease of compressibility is observed, in agreement with the Hall--Petch effect.
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| Keywords:
64.70.Nd
64.70.Kb
61.10.Nz
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Received: 23 January 2007
Published: 17 May 2007
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