Nucleation of diamond in the system of carbon and water under very high pressure and temperature

被引：34

作者：

Hong, SM ^{[1
]}

Akaishi, M ^{[1
]}

Yamaoka, S ^{[1
]}

机构：

[1] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 200卷 / 1-2期

关键词：

nucleation of diamonds; high pressure and temperature; water solvent;

D O I：

10.1016/S0022-0248(98)01288-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Diamond could be nucleated spontaneously from graphite in high-pressure-high-temperature water condition at temperatures not less than 1900 degrees C at 7.7 GPa. On the other hand, when diamond crystals were present as seeds in the above system, nucleation temperature decreased to 1700 degrees C at 7.7 GPa, where numerous small diamond crystals were heterogeneously nucleated around the seed crystals. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：326 / 328

页数：3

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