The impact of Co/La ratios on microstructure and magnetic properties of the Sr0.75−xCa0.25LaxFe12−yCoyO19 hexaferrites
作者： Yujie Yang , Fanhou Wang , Juxiang Shao , Duohui Huang , Xiansong Liu
DOI: 10.1016/J.JMMM.2015.02.016
关键词:
摘要: Abstract Hexagonal ferrite Sr 0.75− x Ca 0.25 La Fe 12− y Co O 19 magnetic powder and magnets were synthesized according to a ceramic process. The phase compositions of the samples determined by X-ray diffraction. There is single magnetoplumbite in with / from 0.3 0.6, when >0.6, CoFe 2 4 observed. micrographs sintered observed field emission scanning electron microscopy. have formed hexagonal structures particles are distributed inhomogeneously. impact Co/La ratios on properties was studied systematically. remanence, induction coercivity maximum energy product first increase then decrease >0.6. However, intrinsic increases 0.9, decreases >0.9. rectangularity demagnetizing curves for increasing .
core.ac.uk
harvard.edu
elsevier.com
sci-hub.se 参考文章(18)
L Lechevallier, J M Le Breton, J F Wang, I R Harris, Structural and Mössbauer analyses of ultrafine Sr1−xLaxFe12−xZnxO19 and Sr1−xLaxFe12−xCoxO19 hexagonal ferrites synthesized by chemical co-precipitation Journal of Physics: Condensed Matter. ,vol. 16, pp. 5359- 5376 ,(2004) , 10.1088/0953-8984/16/29/025
Xiansong Liu, Pablo Hernández-Gómez, Kai Huang, Shengqiang Zhou, Yong Wang, Xia Cai, Hongjun Sun, Bao Ma, Research on La3+–Co2+-substituted strontium ferrite magnets for high intrinsic coercive force Journal of Magnetism and Magnetic Materials. ,vol. 305, pp. 524- 528 ,(2006) , 10.1016/J.JMMM.2006.02.096
P. Tenaud, A. Morel, F. Kools, J.M. Le Breton, L. Lechevallier, Recent improvement of hard ferrite permanent magnets based on La–Co substitution Journal of Alloys and Compounds. ,vol. 370, pp. 331- 334 ,(2004) , 10.1016/J.JALLCOM.2003.09.106
Takeyuki Kikuchi, Tatsuya Nakamura, Tohru Yamasaki, Makoto Nakanishi, Tatsuo Fujii, Jun Takada, Yasunori Ikeda, Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method Journal of Magnetism and Magnetic Materials. ,vol. 322, pp. 2381- 2385 ,(2010) , 10.1016/J.JMMM.2010.02.041
G Asti, F Bolzoni, J.M Le Breton, M Ghidini, A Morel, M Solzi, F Kools, P Tenaud, Magnetic anisotropy of LaCo-substituted SrFe12O19 ferrites Journal of Magnetism and Magnetic Materials. ,vol. 272-276, pp. E1845- E1846 ,(2004) , 10.1016/J.JMMM.2003.12.1275
S.M. Masoudpanah, S.A. Seyyed Ebrahimi, C.K. Ong, Microstructure and magnetic properties of La-Co substituted strontium hexaferrite films prepared by pulsed laser deposition Journal of Magnetism and Magnetic Materials. ,vol. 342, pp. 134- 138 ,(2013) , 10.1016/J.JMMM.2013.04.066
Muhammad Javed Iqbal, Muhammad Naeem Ashiq, Iftikhar Hussain Gul, None, Physical, electrical and dielectric properties of Ca-substituted strontium hexaferrite (SrFe12O19) nanoparticles synthesized by co-precipitation method Journal of Magnetism and Magnetic Materials. ,vol. 322, pp. 1720- 1726 ,(2010) , 10.1016/J.JMMM.2009.12.013
Yue Liu, Jingping Wang, Milin Zhang, Ying Liu, Michael G.B. Drew, Preparation and magnetic properties of La–Mn and La–Co doped barium hexaferrites prepared via an improved co-precipitation/molten salt method Journal of Magnetism and Magnetic Materials. ,vol. 322, pp. 3342- 3345 ,(2010) , 10.1016/J.JMMM.2010.06.022
Xiao Li, Wuguo Yang, Daxin Bao, Xiangdong Meng, Baiyang Lou, Influence of Ca substitution on the microstructure and magnetic properties of SrLaCo ferrite Journal of Magnetism and Magnetic Materials. ,vol. 329, pp. 1- 5 ,(2013) , 10.1016/J.JMMM.2012.10.004
F Kools, A Morel, R Grössinger, J.M Le Breton, P Tenaud, LaCo-substituted ferrite magnets, a new class of high-grade ceramic magnets; intrinsic and microstructural aspects Journal of Magnetism and Magnetic Materials. ,vol. 242, pp. 1270- 1276 ,(2002) , 10.1016/S0304-8853(01)00988-X