A low temperature mechanochemical synthesis of nanostructured ZrC powder by a magnesiothermic reaction

被引：29

作者：

Davoodi, Danial ^{[1
]}

Hassanzadeh-Tabrizi, S. A. ^{[1
]}

Emami, Arnir Hossein ^{[2
]}

Salahshour, Saman ^{[2
]}

机构：

[1] Islamic Azad Univ, Najafabad Branch, Young Researchers & Elite Club, Najafabad, Isfahan, Iran

[2] Islamic Azad Univ, Najafabad Branch, Dept Mat Engn, Najafabad, Isfahan, Iran

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 07期

关键词：

Ceramics; Powder technology; Mechanochemical processing; Zirconium carbide; Nanostructured materials; NANOCOMPOSITE; CERAMICS; BEHAVIOR;

D O I：

10.1016/j.ceramint.2015.03.034

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：

Nanostructured ZrC powder was synthesized by the mechanochernical process in a high-energy ball mill by a magnesiothermic reaction. The effects of various amounts of Mg (stoichiometric and over-stoichiometric) on synthesis efficiency of the ZrC powders were investigated. The synthesized powders were studied by X-ray diffraction (XRD), differential thermal analysis (DTA), field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Zirconium carbide (ZrC) was produced after 30 h milling. Thermodynamic calculation showed the reaction to be a mechanically induced self-sustaining one (MSR). DTA analysis indicated that the temperature of exothermic reaction decreases significantly after 12 h milling. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：8397 / 8401

页数：5

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