Influence of mechanical activation on TiC self propagating high temperature synthesis.

被引：6

作者：

Dubois, S

Karnatak, N

Beaufort, MF

Bourdarias, L

Renault, PO

Vreb, D

机构：

[1] Met Phys Lab, UMR 6630, F-86962 Futuroscope, France

[2] Lab Ingn Mat & Hautes Press, UPR 1311, F-93430 Villetaneuse, France

[3] LRRS, GDR 2391, Grp Francais Autocombust, F-21078 Dijon, France

来源：

MATERIALS TECHNOLOGY | 2003年 / 18卷 / 03期

关键词：

D O I：

10.1080/10667857.2003.11753034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vibrating milled Ti/C mixture mostly consists in aggregates composed of Ti nanocrystallites and amorphous carbon. In addition, Ti nanocrystallites also contains a large density of lattice imperfections. It is demonstrated that the reaction performed with vibrating milled reactant is very fast compared to the reaction performed with turbula mixed Ti/C powders. Such a result may find its origin in the uniformity of the vibrating milled mixture and/or in the stored energy in the Ti nanocrystallites which may reduce the activation energy.

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页码：158 / 162

页数：5

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