MICROSTRUCTURAL AND ANALYTICAL CHARACTERIZATION OF AL2O3-(AL-MG) COMPOSITE INTERFACES

被引：55

作者：

MOLINS, R

BARTOUT, JD

BIENVENU, Y

机构：

[1] Ecole des Mines de Paris, Centre des Matériaux Pierre-Marie Fourt, 91003 Evry Cedex

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 135卷

关键词：

D O I：

10.1016/0921-5093(91)90546-Y

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical properties of composite materials depend on the reactions taking place at the ceramic-matrix interface. This study was devoted to the identification of the mechanisms of interaction for a Saffil-(Al-Mg) composite during squeeze casting and heat treatment. Transmission electron microscopy characterization and microanalysis clearly show migration of magnesium to the interface and reactions during processing of the composite and appropriate heat treatments allowed MgO and MgAl2O4 clusters to be identified along the interface. Additionally, structural hardening of matrix through Mg2Si precipitation was made clear. Some evidence of macroheterogeneity in composition is also given.

引用

页码：111 / 117

页数：7

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