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Transformations induced by mechanochemical activation in the Al-Fe3O4 system

被引：6
作者：
Botta, PM
Aglietti, EF
López, JMP
机构：
[1] Consejo Nacl Invest Cient & Tecn, UNMdP, INTEMA, Mar Del Plata, Buenos Aires, Argentina
[2] Consejo Nacl Invest Cient & Tecn, CIC, UNLP, CETMIC, Gonnet, Argentina
来源：
JOURNAL OF MATERIALS SYNTHESIS AND PROCESSING | 2000年 / 8卷 / 5-6期
关键词：
mechanochemistry; metal-ceramic composites; spinels; self-sustained reaction;
D O I：
10.1023/A:1011354730345
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The physicochemical transformations induced by mechanochemical and thermal treatments of Al-Fe3O4 mixtures under Ar atmosphere have been investigated. This reaction system underwent a self-sustained reaction after 37 min of high-energy milling, yielding alpha -Fe and alpha -Al2O3. The mixtures activated for shorter times showed the same reaction when thermally treated in Ar atmosphere, at approximately 660 degreesC. Depending on the heating conditions, the reaction did or did not occur in a self-sustained way. The influence of the processing parameters on the synthesis and properties of the different materials obtained has been analyzed.
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收藏
页码：345 / 350
页数：6
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