Effect of powder characteristics on the sinterability of a microwave-plasma-synthesized iron nanopowder

被引：5
|
作者：
Kecskes, LJ [1 ]
Woodman, RH [1 ]
机构：
[1] USA, Res Lab, Weapons & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA
来源：
SCRIPTA MATERIALIA | 2003年 / 48卷 / 08期
关键词：
nanocrystalline material; powder processing; microscopy; X-ray diffraction; grain growth;
D O I：
10.1016/S1359-6462(02)00645-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Compacts, made from a microwave-plasma-synthesized Fe nanopowder, were sintered under H-2 at increasing temperatures. Despite its initial nanosize, we did not observe any enhanced, low-temperature sintering behavior with the powder. Using FESEM, XRD, and BET surface area, we found that the primary nanoparticles are aggregated into micrometer-sized dendritic structures that hinder sintering and densification. Published by Elsevier Science Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码：1041 / 1046
页数：6
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