NDLI: Preparation and Magnetic Properties of MnFe$_{2}$O$

Content Provider	Springer Nature Link
Author	Jiao, Hua
Copyright Year	2011
Abstract	MnFe$_{2}$O$_{4}$ octahedra have been prepared by reaction of Mn$^{2+}$ ions and Fe$^{3+}$ in alkaline condition via heat treatment of the coprecipitation product. The as-prepared powders were characterized in detail by conventional techniques such as powder x-ray diffraction; field emission electron microscopy and transmission electron microscopy. Vibrating sample magnetometer was used to determine the magnetic properties at room temperature. The results show that the MnFe$_{2}$O$_{4}$ octahedra were single crystals with cubic jacobsite structure and a size distribution from 0.8 to 1.0 μm. The octahedra obtained at 1100 and 1200 °C exhibited a ferromagnetic behavior with the coercive force (H $_{c}$) value of 49.03 and 39.23 Oe, saturation magnetization (M $_{s}$) value of 42.93 and 47.98 emu/g and remanent magnetization (M $_{r}$) value of 2.16 and 2.55 emu/g, respectively. It is indicated that the heat treatment temperature has a significant effect on the formation of the jacobsite structure. Furthermore, a possible mechanism was also proposed to account for the growth of these products.
Starting Page	1638
Ending Page	1641
Page Count	4
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	20
Issue Number	9
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2011-01-28
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	coprecipitation magnetic MnFe$_{2}$O$_{4}$ octahedra Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Materials Science Engineering Design Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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