Synthesis of Fe-FeAl2O4-Al2O3 by high-energy ball milling of Al-Fe3O4 mixtures

被引：43

作者：

Botta, PM

Mercader, RC

Aglietti, EF

López, JMP

机构：

[1] Inst Invest Ciencia & Tecnol Mat, Div Ceram, Mar Del Plata, Argentina

[2] Natl Univ La Plata, Fac Ciencias Exactas, Dept Fis, IFLP, RA-1900 La Plata, Argentina

[3] Ctr Tecnol Recursos Mineral & Ceram, RA-1897 Manuel B Gonnet, Argentina

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 08期

关键词：

magnetic materials; mechanochemical activation; Mossbauer spectroscopy; spinels;

D O I：

10.1016/S1359-6462(02)00630-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Physicochemical and structural changes induced by mechanical activation of Al-Fe3O4 mixtures are studied. After 37 min, the system undergoes a self-sustained reaction with formation of alpha-Fe, FeAl2O4 and alpha-Al2O3. The evolution of the composition follows a three-step reaction. The solid solution spinel Fe[Al2-xFex]O-4, (0.13 < x < 0.29), is obtained through a mechanochemical-thermal route. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1093 / 1098

页数：6

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