Tantalum sound velocity under shock compression
Tantalum sound velocity under shock compression
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DOI：
10.1063/1.5054332
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发表时间：
2019-04
影响因子：
3.2
通讯作者：
M. Akin;J. Nguyen;M. Beckwith;R. Chau;W. P. Ambrose;O. V. Fat’yanov;P. Asimow;N. Holmes
中科院分区：
文献类型：
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作者：
M. Akin;J. Nguyen;M. Beckwith;R. Chau;W. P. Ambrose;O. V. Fat’yanov;P. Asimow;N. Holmes
我们使用了几种不同的冲击压缩方法来测量冲击钽在37-363 GPa压力范围内的纵向声速，典型的不确定度为1.0%。这些数据是一致的Ta保持在体心立方相沿着的主要Hugoniot从环境压力到300 GPa，在压力熔化发生。这些数据也不支持在100 GPa以下的一些静态压缩experiments.We使用几种不同的冲击压缩方法测量冲击钽的纵向声速在37-363 GPa的压力范围内，与一个典型的不确定度为1.0%的推定熔化现象报告。这些数据是一致的Ta保持在体心立方相沿着的主要Hugoniot从环境压力到300 GPa，在压力熔化发生。这些数据也不支持一些静态压缩实验中报告的低于100 GPa的假定熔化现象。
We used several variations of the shock compression method to measure the longitudinal sound velocity of shocked tantalum over the pressure range 37–363 GPa with a typical uncertainty of 1.0 %. These data are consistent with Ta remaining in the bcc phase along the principal Hugoniot from ambient pressure to ≈300 GPa, at which pressure melting occurs. These data also do not support the putative melting phenomena reported below 100 GPa in some static compression experiments.We used several variations of the shock compression method to measure the longitudinal sound velocity of shocked tantalum over the pressure range 37–363 GPa with a typical uncertainty of 1.0 %. These data are consistent with Ta remaining in the bcc phase along the principal Hugoniot from ambient pressure to ≈300 GPa, at which pressure melting occurs. These data also do not support the putative melting phenomena reported below 100 GPa in some static compression experiments.