The Library
Structural and magnetic properties of Ni1−xZnxFe2O4 (x=0, 0.5 and 1) nanopowders prepared by sol–gel method
Tools
Gao, Pengzhao, Hua, Xia, Degirmenci, Volkan, Rooney, David, Khraisheh, Majeda, Pollard, Robert, Bowman, Robert M. and Rebrov, Evgeny V. (2013) Structural and magnetic properties of Ni1−xZnxFe2O4 (x=0, 0.5 and 1) nanopowders prepared by sol–gel method. Journal of Magnetism and Magnetic Materials, Volume 348 . pp. 44-50. doi:10.1016/j.jmmm.2013.07.060 ISSN 0304-8853.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1016/j.jmmm.2013.07.060
Abstract
A series of nanostructured Ni–Zn ferrites Ni1−xZnxFe2O4 (x=0, 0.5 and 1) with a grain size from 24 to 65 nm have been prepared with a sol–gel method. The effect of composition and sintering temperature on morphology, magnetic properties, Curie temperature, specific heating rate at 295 kHz and hysteresis loss have been studied. The highest coercivity of 50 and 40 Oe, were obtained for NiFe2O4 and Ni0.5Zn0.5Fe2O4 samples with the grain size of 35 and 29 nm, respectively. The coercivity of Ni and Ni–Zn mixed ferrites decreased with temperature. The Bloch exponent was 1.5 for all samples. As the grain size increased, the Curie temperature of NiFe2O4 increased from 849 to 859 K. The highest saturation magnetization of 70 emu/g at 298 K and the highest specific heating rate of 1.6 K/s under radiofrequency heating at 295 kHz were observed over NiFe2O4 calcined at 1073 K. Both the magnitude of the hysteresis loss and the temperature dependence of the loss are influenced by the sintering temperature and composition.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | Journal of Magnetism and Magnetic Materials | ||||||||
Publisher: | Elsevier Science BV | ||||||||
ISSN: | 0304-8853 | ||||||||
Official Date: | December 2013 | ||||||||
Dates: |
|
||||||||
Volume: | Volume 348 | ||||||||
Page Range: | pp. 44-50 | ||||||||
DOI: | 10.1016/j.jmmm.2013.07.060 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |