Flash melting of tantalum in a diamond cell to 85 GPa

被引：24

作者：

Karandikar, Amol ^{[1
,2
]}

Boehler, Reinhard ^{[1
]}

机构：

[1] Carnegie Inst Sci, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA

[2] Goethe Univ Frankfurt, Geowissensch, Altenhoferallee 1, D-60438 Frankfurt, Germany

来源：

PHYSICAL REVIEW B | 2016年 / 93卷 / 05期

基金：

美国国家科学基金会;

关键词：

PRESSURE; TA; CURVES; STATE; MO;

D O I：

10.1103/PhysRevB.93.054107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate a new level of precision in measuring melting temperatures at high pressure using laser flash heating in a diamond cell followed by an analysis using scanning electron microscopy and focused ion beam milling. The new measurements on tantalum put unprecedented constraints on its highly debated melting slope, calling for a reevaluation of theoretical, shock compression, and diamond cell approaches to determine melting at high pressure. X-ray analysis of the recovered samples confirmed the absence of chemical reactions, which likely played a significant role in previous experiments.

引用

页数：6