Specific features of synthesis of detonation nanodiamonds

被引：43
作者：
Danilenko, VV [1 ]
机构：
[1] ALIT Joint Stock Co, UA-03067 Kiev, Ukraine
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 2005年 / 41卷 / 05期
关键词：
nanodiamond; synthesis; amorphization; detonation; scale factor;
D O I：
10.1007/s10573-005-0072-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
It is demonstrated that the Chapman-Jouguet parameters for high explosives used in nanodiamond synthesis are located in the region of liquid nanocarbon; therefore, the chemical reaction zone of the detonation wave involves formation of carbon nan-odroplets, which are later crystallized into nanodiamonds on the segment of the isentrope of expansion of detonation products, passing through the region of stability of nanodiamonds in the pressure range of 16.5-10 GPa and the temperature range of 3400-2900 K. Soot in the resultant mixture is the product of amorphization of nanodroplets rather than graphitization of ultrafine diamonds. The influence of detonation conditions of high-explosive charges in an explosive chamber on nanodiamond synthesis is analyzed.
引用
收藏
页码：577 / 588
页数：12
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