THE COMBUSTION SYNTHESIS OF COPPER ALUMINIDES

被引：44

作者：

WANG, LL ^{[1
]}

MUNIR, ZA ^{[1
]}

HOLT, JB ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DEPT CHEM & MAT SCI,LIVERMORE,CA 94550

来源：

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY | 1990年 / 21卷 / 03期

关键词：

32;

D O I：

10.1007/BF02667870

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The formation of Cu-Al alloys by the thermal explosion mode of the combustion synthesis method was investigated for compositions ranging from 25 to 50 at. pct Al. Through X-ray, differential thermal analysis (DTA), and scanning electron microscopy (SEM) analyses, the nature of the reaction between powders of the two metals was determined. Solid-state diffusional reactions preceded the main combustion reaction which, in turn, was triggered by the appearance of a liquid phase. The relative amounts of phases formed through solid-state and liquid-phase reactions depended on heating rate. A significant amount of volume growth is observed during the solid-state reaction stage, and it is concluded that it is caused by pore formation by the Kirkendall effect. © 1990 The Minerals, Metals & Material Society.

引用

页码：567 / 577

页数：11

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