Production and some properties of Si3N4 reinforced aluminium alloy composites

被引：161

作者：

Sharmaa, Pardeep ^{[1
]}

Sharma, Satpal ^{[2
]}

Khanduja, Dinesh ^{[1
]}

机构：

[1] NIT, Dept Mech Engn, Kurukshetra, Haryana, India

[2] Gautam Buddha Univ, Sch Engn, Greater Noida, Uttar Pradesh, India

来源：

JOURNAL OF ASIAN CERAMIC SOCIETIES | 2015年 / 3卷 / 03期

关键词：

Aluminium matrix composites (AMCs); Stir casting; Optical microscope; Scanning electron microscope (SEM); Silicon nitride (Si3N4);

D O I：

10.1016/j.jascer.2015.07.002

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present research work focuses on the production of aluminium (AA6082-T6) matrix composites reinforced with various weight percentage of silicon nitride particles by conventional stir casting route. The percentage of reinforcement is varied from 0 wt.% to 12 wt.% in a stage of 3%. The microstructures and mechanical properties of the fabricated aluminium matrix composites are investigated. The scanning electron microstructure images reveal the presence of Si3N4 particles in the aluminium matrix. The distribution of Si3N4 particles has also been recognized with X-ray diffraction technique. The mechanical properties such as ultimate tensile strength and hardness have improved at the cost of reduction in ductility with increase in weight percentage of silicon nitride particulates in the aluminium metal matrix. The density and porosity of the composites also show an increasing trend with increase in volume fraction of Si3N4 particles in the aluminium matrix. (C) 2015 The Ceramic Society of Japan and the Korean Ceramic Society. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：352 / 359

页数：8

共 40 条

[1] Effects of silicon carbide reinforcement on microstructure and properties of cast Al-Si-Fe/SiC particulate composites [J].