Hexagonal SrFe12O19 ferrite with high saturation magnetization. Issue 12 (15th August 2018)

• Record Type: Journal Article
• Authors: Sun, Rui; Li, Xin; Xia, Ailin; Su, Shubing; Jin, Chuangui
• Is Part Of: Ceramics international. Volume 44:Issue 12(2018)
• Page Start: 13551
• Page End: 13555
• Publication Date: 2018-08-15
• Subjects: Hard magnetic material -- SrFe12O19 ferrite -- Goethite -- Saturation magnetization; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.04.187
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Hexagonal M-type ferrites with a nominal composition SrFe12 O19 (SrM) were prepared via a ceramic route using acicular goethite (α-FeOOH) nanopowders obtained at different hydrothermal temperature as one of the starting materials, and their structural and magnetic properties were investigated. The best hydrothermal temperature of α-FeOOH used was found to be 1ower than 180 °C, and the best sintering temperature of SrM should be 1200 °C. The highest saturation magnetization of SrM reaches 76.7 emu/g, a very high value rarely found in the SrM ferrites without any substitution or dopant.