Differential thermal analysis of the Al+20% (Fe-50% B) system

被引：15

作者：

Abenojar, J. ^{[1
]}

Velasco, F. ^{[1
]}

Martinez, M. A. ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Mat Sci & Engn, E-28911 Leganes, Spain

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2006年 / 179卷 / 09期

关键词：

differential thermal analysis; image analysis; intermetallic; borides;

D O I：

10.1016/j.jssc.2005.12.037

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the present study, aluminium and mechanically alloyed (36 h) Fe/B (50 wt%) are mixed. A1 + 20 (wt%) Fe/B mixture has been studied by differential thermal analysis to determine the aluminium quantity that is supposed to melt and afterwards does not solidify as it reacts with Fe/B powder. The different areas between endothermic reaction (melting peak) and exothermic reaction (solidification peak) allow in knowing the quantity of aluminium that reacts with Fe/B and the amount of intermetallic phases formed at high temperature. In order to follow the process, compacts were sintered at different temperatures (700, 800, 900, 1000 and 1200 degrees C), in N-2/10H(2)/0.1CH(4) atmosphere. Microstructure was evaluated by image analysis and the results obtained by both techniques are compared. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：2787 / 2790

页数：4

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