Microwave-induced combustion synthesis of Li0.5Fe2.5-xM xO4 (M = Al, Cr, Mn) powder and their characterization
Creators
- 1. Department of Chemical Engineering, Wu-Feng Institute of Technology, Ming-Hsiung, Chiayi 621, Taiwan (China)
- 2. Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu 300, Taiwan (China)
- 3. Institute of Physics, Academia Sinica, Taipei 115, Taiwan (China)
Description
Li0.5Fe2.5-xM xO4 (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 deg. C 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-xM xO4 were strongly affected by different metal ions substitution
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2004.11.048;
- PII
- S0925-8388(04)01477-X;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 395
- Journal Issue
- 1-2
- Journal Page Range
- p. 272-276
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37054591
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM NITRATES; ANNEALING; CHROMIUM COMPOUNDS; CHROMIUM NITRATES; COMBUSTION; CURIE POINT; DIFFERENTIAL THERMAL ANALYSIS; FERRITES; IRON COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM NITRATES; MAGNETIZATION; MANGANESE COMPOUNDS; MANGANESE NITRATES; MICROWAVE RADIATION; TRANSMISSION ELECTRON MICROSCOPY; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; FERRIMAGNETIC MATERIALS; HEAT TREATMENTS; IRON COMPOUNDS; LITHIUM COMPOUNDS; MAGNETIC MATERIALS; MAGNETOMETERS; MANGANESE COMPOUNDS; MATERIALS; MEASURING INSTRUMENTS; MICROSCOPY; NITRATES; NITROGEN COMPOUNDS; OXIDATION; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; SCATTERING; THERMAL ANALYSIS; THERMOCHEMICAL PROCESSES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.