Effect of heating temperature of expandable graphite on amorphization behavior of powder expanded graphite-Fe mixtures by ball-milling

被引：11
|
作者：
Yue, Xueqing [1 ,2 ]
Yu, Kun [2 ]
Ji, Li [2 ]
Wang, Zhijia [2 ]
Zhang, Fucheng [1 ]
Qian, Lihe [1 ]
Liu, Yuefeng [2 ]
Zhang, Ruijun [1 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Qinhuangdao Higher Vocat & Tech Coll, Qinhuangdao 066004, Peoples R China
来源：
POWDER TECHNOLOGY | 2011年 / 211卷 / 01期
基金：
美国国家科学基金会;
关键词：
Expanded graphite; Iron; Ball-milling; Amorphization process; MICROSTRUCTURE CHARACTERIZATION; CARBON NANOSTRUCTURES; IRON;
D O I：
10.1016/j.powtec.2011.03.040
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Three expanded graphites, EG1, EG2 and EG3 that were prepared by rapid heating expandable graphite to 600, 800 and 1000 degrees C. respectively, were ball-milled in a high-energy mill (planetary-type) in an air atmosphere with 16.7% iron powder addition. The X-ray diffraction patterns of the products show that the amorphization process of the powder EG-Fe mixtures during ball-milling is accelerated with increasing the heating temperature of expandable graphite. In addition, amorphous EG-Fe system and Fe3C phase are formed in the ball-milled EG3-Fe. Compared with the amorphization process of EGs without iron addition during ball-milling, the presence of iron restrains the process of EG1 in rate, but it promotes the process of EG3. (C) 2011 Elsevier By. All rights reserved.
引用
收藏
页码：95 / 99
页数：5
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