An X-ray Diffraction and Mossbauer Spectroscopy study of the reaction between hematite and aluminum activated by Ball Milling

被引：8

作者：

Concas, G

Corrias, A

Manca, E

Marongiu, G

Paschina, G

Spano, G

机构：

[1] Univ Cagliari, Dipartimento Sci Chim, I-09124 Cagliari, Italy

[2] Univ Cagliari, Dipartimento Sci Fisiche, I-09124 Cagliari, Italy

[3] Ist Nazl Fis Mat, I-09124 Cagliari, Italy

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 1998年 / 53卷 / 05期

关键词：

D O I：

10.1515/zna-1998-0521

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The reaction between hematite and aluminum in presence of allumina as diluent activated by Ball Milling powder mixtures in different energetic conditions has been investigated. To this purpose, the powders at different milling times have been characterized by X-ray Diffraction and Mossbauer Spectroscopy. A self-substained combustion reaction was observed when the strongest energetic conditions of milling were adopted. The intermediate products of the reaction also depend on the energetic conditions: the formation of hercynite is favoured by the use of strong energetic conditions while the formation of an Fe-Al alloy was observed when a low energy per single hit is transferred to the powders.

引用

页码：239 / 244

页数：6

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