Metallization of Hydrogen and Other Small Molecules at 100 GPa Pressures.

Nellis, W. J.

Technical Information Center Oak Ridge Tennessee

关键词: Hydrogen;    Oxygen;    Nitrogen;    Water;    Molecules;   

RP-ID  :  DE200415006153

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Fluid hydrogen, oxygen, and nitrogen become metallic at 100 GPa (1 Mbar) pressures. Disorder is the primary reason for observing a metal at lower pressures in the fluid than expected for the ordered solid. This metallic transition is similar to those observed in fluid Cs and Rb by Hensel et al. All five undergo a Mott transition from a semiconducting to metallic fluid with the same electrical conductivities. In contrast, water is a proton conductor at pressures up to 200 GPa. Extreme conditions were achieved for(approx)100 ns with a reverberating shock wave generated with a two-stage light-gas gun.