ANOMALOUS COMBUSTION EFFECTS DURING MECHANICAL ALLOYING

被引：100

作者：

SCHAFFER, GB

MCCORMICK, PG

机构：

[1] Department of Mining and Metallurgical Engineering, The University of Queensland, 4072, Qld

[2] Department of Mechanical Engineering, the University of Western Australia, Nedlands, 6009, W.A.

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1991年 / 22卷 / 12期

关键词：

D O I：

10.1007/BF02650262

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Combustion in solid-state displacement reactions during mechanical alloying has been investigated. It was found that mechanical alloying decreases the critical reaction temperature at which unstable combustion reactions propagate. Some reactions exhibited an unusual "interrupted combustion" effect, whereby reactant powders which had been milled for subcombustion times and left to age at room temperature combusted on the immediate resumption of milling. For one reaction, the reduction of ZnO by Ti, combustion was only observed in aged powders. Interrupted combustion is associated with the diffusion of reactant species during aging and with a decrease in the temperature required for combustion.

引用

页码：3019 / 3024

页数：6

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