Journal
CERAMICS INTERNATIONAL
Volume 42, Issue 1, Pages 1114-1121Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.09.039
Keywords
Magnetic properties; Magnetic materials; Chemical synthesis; X-ray diffraction
Categories
Funding
- National Natural Science Foundation of China [21161002]
- Guangxi University Student Innovation Foundation of China [SYJN20130356]
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Co-Mn ferrites with a nominal composition LixCo0.5Mn0.5-xFe2O4 (0.0 <= x <= 0.3) are prepared by calcining precursor oxalates in air. The effects of composition and calcination temperatures on their structure, morphology, and magnetic properties are studied. A high-crystallized LixCo0.5Mn0.5-xFe2O4 with a cubic structure is obtained when the precursor is calcined at 950 degrees C in air for 3 h. All the Li+ substituted Co-Mn ferrites exhibit typical spinel structure. Moreover, lattice parameters of LixCo0.5Mn0.5-xFe2O4 decrease and crystallite size increases with increasing Li+ content, leading to an increase of the specific saturation magnetization and a decrease of the coercive field and the magnetic anisotropy constant. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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