Preparation of Al2O3-TiB2 nanocomposite powder by mechanochemical reaction between Al, B2O3 and Ti

被引：38

作者：

Sharifi, E. Mohammad ^{[1
]}

Karimzadeh, F. ^{[1
]}

Enayati, M. H. ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Mat Engn, Nanotechnol & Adv Mat Inst, Esfahan 8415683111, Iran

来源：

ADVANCED POWDER TECHNOLOGY | 2011年 / 22卷 / 04期

关键词：

Ceramics; Alumina; Nanocomposites; Mechanochemical processing; MECHANICAL-PROPERTIES; CERAMICS; BEHAVIOR;

D O I：

10.1016/j.apt.2010.07.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Mechanochemical processing is a novel technique for the synthesis of nano-sized materials. This research is based on the production of Al2O3-TiB2 nanocomposite powder using mechanochemical processing. For this purpose, a mixture of aluminum, titanium and boron oxide powders was subjected to high energy ball milling. The structural evaluation of powder particles after different milling times was conducted by X-ray diffractometry (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results showed that during ball milling the Al/B2O3/Ti reacted with a combustion mode producing Al2O3-TiB2 nanocomposite. In the final stage of milling, the crystallite sizes of Al2O3 and TiB2 were estimated to be less than 50 nm. (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：526 / 531

页数：6

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