Magnetic properties of sintered SrFe12O19–CoFe2O4 nanocomposites with exchange coupling》.pdf

Journal of Alloys and Compounds 653 (2015) 108 e116 Contents lists available at ScienceDirect Journal of Alloys and Compounds journal homepage: http://www.elsevier .com/locate/jalcom Magnetic properties of sintered SrFe O eCoFe O nanocomposites 12 19 2 4 with exchange coupling * Ailin Xia , Suzhen Ren, Junshu Lin, Yue Ma, Chen Xu, Jinlin Li, Chuangui Jin, Xianguo Liu Anhui Key Laboratory of Metal Materials and Processing, School of Materials Science and Engineering, Anhui University of Technology, Maanshan 2430 02, China a r t i c l e i n f o a b s t r a c t Article history: Two series of nanocomposite ferrites sintered at 700 C and 900 C, respectively, were prepared using Received 5 August 2015 SrFe O and CoFe O nanopowders obtained via a hydrothermal procedure. For the SrFe O /CoFe O 12 19 2 4 12 19 2 4 Received in revised form ferrites with a mass ratio ranging from 3:1 to 1:3, all the specimens exhibit a typical single-phase 28 August 2015 magnetic behavior, suggesting the existence of exchange coupling. Compared with single-phase Accepted 29 August 2015 SrFe12O1