期刊
MATERIALS LETTERS
卷 160, 期 -, 页码 323-326出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.08.014
关键词
Bi2Fe4O9; Ceramics; Magnetic materials
资金
- National Natural Science Foundation of China [11174092]
- Key Project of Henan Educational Committee [14A140019]
- Doctoral Scientific Research Foundation of Xinyang Normal University [0201312]
A series of polycrystalline Bi2Fe4O9 ceramics are synthesized by a modified Pechini method, which are sintered at different temperatures from 700 to 900 degrees C after nonmagnetic field and magnetic field pre-sintering processes. X-ray diffraction patterns reveal that all samples are single phase. Compared with the nonmagnetic field pre-sintered samples, enhanced magnetization and electric polarization are found in the magnetic field pre-sintered ones. With sintering temperature increasing, induced weak ferro-magnetic property is depressed after magnetic field pre-sintering. The results indicate that it is possible to tune the magnetic and electric properties of Bi2Fe4O9 by magnetic field pre-sintering. (C) 2015 Elsevier B.V. All rights reserved.
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