Pressure dependences of the melting temperature of graphite and the electrical resistivity of liquid carbon

被引：190

作者：

Togaya, M

机构：

[1] Department of Material Physics, Faculty of Engineering Science, Osaka University, Osaka, 560, Toyonaka

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.79.2474

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The melting line of graphite and the electrical resistivity of liquid carbon are investigated along the melting line by a flash-heating experiment under high pressures. The melting temperature of graphite increased from 4650 K at 1.4 GPa to a maximum of 4790 K at 5.6 GPa, then decreased to 4640 K at 9.4 GPa, The electrical resistivity of liquid carbon along the melting line decreased from 900 to 600 mu Omega cm with an increase of pressure of 1.4 to 9.4 Gpa. Changes in slopes of the melting line and of the electrical resistivity at about 5.6 GPa suggest a possibility for a first-order phase transition in liquid carbon.

引用

页码：2474 / 2477

页数：4

共 23 条

[1]

Brazhkin V. V., 1991, HIGH PRESS RES, V6, P363, DOI [10.1080/08957959208201044, DOI 10.1080/08957959208201044]

[2] METASTABLE STATES IN SIMPLE MELTS - THE KINETICS OF TRANSITIONS IN LIQUID-SE AND LIQUID-S UNDER HIGH-PRESSURE [J].