Tantalum sound velocity under shock compression

被引：23

作者：

Akin, Minta C. ^{[1
]}

Nguyen, Jeffrey H. ^{[1
]}

Beckwith, Martha A. ^{[1
,3
]}

Chau, Ricky ^{[1
]}

Ambrose, W. Patrick ^{[1
]}

Fat'yanov, Oleg V. ^{[2
]}

Asimow, Paul D. ^{[2
]}

Holmes, Neil C. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] CALTECH, Pasadena, CA 91125 USA

[3] CUNY, Adv Sci Res Ctr, Struct Biol Initiat, New York, NY 10031 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2019年 / 125卷 / 14期

关键词：

IRON;

D O I：

10.1063/1.5054332

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 approximate 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. Published under license by AIP Publishing.

引用

页数：7

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