Microwave-induced combustion synthesis of Li0.5Fe2.5-xMxO4 (M = Al, Cr, Mn) powder and their characterization

Li0.5Fe2.5-xMxO4 (M = Al, Cr, Mn) powders with small and uniformly sized particles were successfully synthesized by microwave-induced combustion, using lithium nitrate, ferric nitrate, aluminum nitrate, chromium nitrate, manganese nitrate, and carbohydrazide as the starting materials. The process ta...

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Published inJournal of alloys and compounds Vol. 395; no. 1-2; pp. 272 - 276
Main Authors FU, Yen-Pei, SHEN TSAO, HU, Chen-Ti, YAO, Yeong-Der
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier 31.05.2005
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Summary:Li0.5Fe2.5-xMxO4 (M = Al, Cr, Mn) powders with small and uniformly sized particles were successfully synthesized by microwave-induced combustion, using lithium nitrate, ferric nitrate, aluminum nitrate, chromium nitrate, manganese nitrate, and carbohydrazide as the starting materials. The process takes only a few minutes to obtain as-received Al, Cr, and Mn-substituted lithium ferrite powders. The resultant powders annealed at 650 DGC for 2 h and were investigated by thermogravimeter/differential thermal analyzer (TG/DTA), X-ray diffractometer (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), and thermomagnetic analysis (TMA). The results revealed that saturation magnetization and Curie temperature of Li0.5Fe2.5-xMxO4 were strongly affected by different metal ions substitution.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2004.11.048