Direct transformation of cubic diamond to hexagonal diamond

被引：93

作者：

He, HK ^{[1
]}

Sekine, T ^{[1
]}

Kobayashi, T ^{[1
]}

机构：

[1] NIMS, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 04期

关键词：

D O I：

10.1063/1.1495078

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For a long time, hexagonal diamond has been formed only by static and shock wave compression of well-crystallized graphites. Here, we demonstrate that cubic diamond loses its structure stability and transforms to hexagonal diamond in massive. This transformation has been completed in nanoseconds under a shock wave compression of cubic diamond, in which the shock pressure and temperature are only tens of giga pascal and hundreds of kelvin, thermodynamically being within the stability of cubic diamond. The formation of hexagonal diamond is interpreted as a direct transition (solid to solid) of cubic diamond by a kinetic mechanism due to the shear stress and enhanced temperature induced by the rapid shock wave compression. (C) 2002 American Institute of Physics.

引用

页码：610 / 612

页数：3

共 27 条

[1] HEXAGONAL DIAMOND - A NEW FORM OF CARBON [J].