XRD and XANES study of reactions in particulate Al-Mg alloy composites

被引：2

作者：

Uju, W. A. ^{[1
]}

Gikunoo, E. ^{[2
]}

Oguocha, I. N. A. ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada

[2] Kwame Nkrumah Univ Sci & Technol, Dept Mat Engn, Kumasi, Ghana

来源：

CANADIAN METALLURGICAL QUARTERLY | 2011年 / 50卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Al-Mg alloy; Fly ash; Metal matrix composites; XANES; XRD; Reactivity; X-RAY-ABSORPTION; FLY-ASH COMPOSITES; CUBIC BORON-NITRIDE; MECHANICAL-PROPERTIES; CORROSION BEHAVIOR; RECYCLED ALUMINUM; MATRIX COMPOSITE; SPECTROSCOPY; WEAR; EDGE;

D O I：

10.1179/000844311X552313

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Reactivity in stir cast Al Uju Mg alloy composites reinforced with fly ash was investigated by means of X-ray diffraction (XRD) and X-ray absorption near edge structure (XANES) spectroscopy at Al and Si K-edges. High purity Al, alpha-Al2O3, MgAl2O4 (spinel), MgO and SiO2 powders were used as reference materials in the XANES investigation. The XRD and XANES data acquired from the raw fly ash used in making the composites were compared with fly ash particles extracted from the as cast composites. The major reaction product formed during fabrication of the composites was spinel. The XANES technique was useful in verifying the presence of various oxides in raw and extracted fly ash particles.

引用

页码：54 / 60

页数：7

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