Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF
In inertial confinement fusion (ICF), polycrystalline diamond—referred to as high density carbon (HDC)—has become a promising ablator candidate. However, with smaller grain size and lower initial density, the equation of state (EOS) for HDC can deviate from that for single-crystal diamond, which cou...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2021-05-01
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| Series: | Matter and Radiation at Extremes |
| Online Access: | http://dx.doi.org/10.1063/5.0039062 |
| _version_ | 1819155645977329664 |
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| author | Peng Wang Chen Zhang Shaoen Jiang Xiaoxi Duan Huan Zhang LiLing Li Weiming Yang Yonggang Liu Yulong Li Liang Sun Hao Liu Zhebin Wang |
| author_facet | Peng Wang Chen Zhang Shaoen Jiang Xiaoxi Duan Huan Zhang LiLing Li Weiming Yang Yonggang Liu Yulong Li Liang Sun Hao Liu Zhebin Wang |
| author_sort | Peng Wang |
| collection | DOAJ |
| description | In inertial confinement fusion (ICF), polycrystalline diamond—referred to as high density carbon (HDC)—has become a promising ablator candidate. However, with smaller grain size and lower initial density, the equation of state (EOS) for HDC can deviate from that for single-crystal diamond, which could be a concern for ICF designs, but current experimental EOS studies for HDC are far from sufficient to clarify how initial density affects target compressibility. Presented here are measurements of the Hugoniot for HDC with an initial density of 3.23 g/cm3 at pressures of 17–26 Mbar. Combined with experimental data reported for nanocrystalline diamond (NCD), a stiffer compressibility of NCD due to lower initial density is confirmed. Two porous models are used for comparison and seem to offer better agreement compared with SESAME databases. Also, the effect of temperature on the Grüneisen parameter, which is usually neglected, might need to be considered for NCD under these conditions. The present data offer important support for EOS studies relevant to ICF and constrain the construction of wide-range EOS. |
| first_indexed | 2024-12-22T15:40:17Z |
| format | Article |
| id | doaj.art-7652a553f3d544a19b06116a905059fd |
| institution | Directory Open Access Journal |
| issn | 2468-080X |
| language | English |
| last_indexed | 2024-12-22T15:40:17Z |
| publishDate | 2021-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | Matter and Radiation at Extremes |
| spelling | doaj.art-7652a553f3d544a19b06116a905059fd2022-12-21T18:21:08ZengAIP Publishing LLCMatter and Radiation at Extremes2468-080X2021-05-0163035902035902-910.1063/5.0039062Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICFPeng Wang0Chen Zhang1Shaoen Jiang2Xiaoxi Duan3Huan Zhang4LiLing Li5Weiming Yang6Yonggang Liu7Yulong Li8Liang Sun9Hao Liu10Zhebin Wang11Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaIn inertial confinement fusion (ICF), polycrystalline diamond—referred to as high density carbon (HDC)—has become a promising ablator candidate. However, with smaller grain size and lower initial density, the equation of state (EOS) for HDC can deviate from that for single-crystal diamond, which could be a concern for ICF designs, but current experimental EOS studies for HDC are far from sufficient to clarify how initial density affects target compressibility. Presented here are measurements of the Hugoniot for HDC with an initial density of 3.23 g/cm3 at pressures of 17–26 Mbar. Combined with experimental data reported for nanocrystalline diamond (NCD), a stiffer compressibility of NCD due to lower initial density is confirmed. Two porous models are used for comparison and seem to offer better agreement compared with SESAME databases. Also, the effect of temperature on the Grüneisen parameter, which is usually neglected, might need to be considered for NCD under these conditions. The present data offer important support for EOS studies relevant to ICF and constrain the construction of wide-range EOS.http://dx.doi.org/10.1063/5.0039062 |
| spellingShingle | Peng Wang Chen Zhang Shaoen Jiang Xiaoxi Duan Huan Zhang LiLing Li Weiming Yang Yonggang Liu Yulong Li Liang Sun Hao Liu Zhebin Wang Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF Matter and Radiation at Extremes |
| title | Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF |
| title_full | Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF |
| title_fullStr | Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF |
| title_full_unstemmed | Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF |
| title_short | Density-dependent shock Hugoniot of polycrystalline diamond at pressures relevant to ICF |
| title_sort | density dependent shock hugoniot of polycrystalline diamond at pressures relevant to icf |
| url | http://dx.doi.org/10.1063/5.0039062 |
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