Effect of current application methods on the preparation of Fe-Al intermetallic compounds by held-activated combustion synthesis
Effect of current application methods on the preparation of Fe-Al intermetallic compounds by held-activated combustion synthesis
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DOI：
10.1016/s0025-5408(00)00364-0
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发表时间：
2000-07-15
影响因子：
5.4
通讯作者：
Won, CW
中科院分区：
文献类型：
--
作者：
Yun, KS;Lee, JH;Won, CW
采用场激活燃烧合成(FACS)工艺制备了纯FeAl金属间化合物。考察了压制压力(150、250和350 Mpa)和颗粒大小(-25、-80和-325目)对产品特性的影响。随着压制压力和电场的增大，燃烧温度和燃烧速度增大。考察了不同加料方式对该体系反应的影响。在没有电场的情况下，该反应无法维持稳定的燃烧波，无法完成。用X-射线衍射仪、扫描电子显微镜和能量色散X射线能谱对反应产物进行了表征，确定了产物的结构和组成。(C)2000爱思唯尔科学有限公司。保留所有权利。
Pure FeAl intermetallic compound was prepared by the field-activated combustion synthesis (FACS) process. Effects of compaction pressure (150, 250, and 350 MPa) and particle size (-25, -80, and -325 mesh) on the characteristics of products were investigated. As the compaction pressure and electric field increased, the combustion temperature and velocity increased. The influences of different current application methods on the reaction in this system were investigated. In the absence of an electric field, the reaction could not sustain a steady combustion wave and was not completed. The reaction products were characterized by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy to determine the structures and compositions. (C) 2000 Elsevier Science Ltd. All rights reserved.