Equation of state measurements in liquid deuterium to 70 GPa.
Equation of state measurements in liquid deuterium to 70 GPa.
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DOI：
10.1063/1.1780189
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发表时间：
2001-11
影响因子：
8.6
通讯作者：
M. Knudson;D. L. Hanson;James E. Bailey;Clint A. Hall;J. Asay;William Anderson
中科院分区：
文献类型：
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作者：
M. Knudson;D. L. Hanson;James E. Bailey;Clint A. Hall;J. Asay;William Anderson
利用强磁压力，开发了一种将飞行板以超过20公里/秒的速度发射的方法。利用该技术对低温液态氘（L-D(2)）进行了板冲击、激波实验，以检验其高压状态方程。采用阻抗匹配方法，在30-70 GPa的压力范围内获得Hugoniot测量值。这些实验的结果与之前报道的Hugoniot测量的L-D(2)在大约40 GPa以上的压力范围内的结果不一致，但与氢及其同位素的第一原理、从头算模型很好地一致。
Using intense magnetic pressure, a method was developed to launch flyer plates to velocities in excess of 20 km/s. This technique was used to perform plate-impact, shock wave experiments on cryogenic liquid deuterium ( L-D(2)) to examine its high-pressure equation of state. Using an impedance matching method, Hugoniot measurements were obtained in the pressure range of 30-70 GPa. The results of these experiments disagree with previously reported Hugoniot measurements of L-D(2) in the pressure range above approximately 40 GPa, but are in good agreement with first principles, ab initio models for hydrogen and its isotopes.