Structural, magnetic and electromagnetic properties of plate-like Zn2W barium hexagonal ferrites prepared by coprecipitation/molten salt method. Issue 10 (December 2015)

• Record Type: Journal Article
• Authors: Wang, Guoyu; Feng, Yongbao; Qiu, Tai; Xu, Jingfeng; Chen, Sainan
• Is Part Of: Ceramics international. Volume 41:Issue 10(2015)Part B
• Page Start: 14087
• Page End: 14093
• Publication Date: 2015-12
• Subjects: Barium hexagonal ferrite -- Coprecipitation -- Molten salt method -- Thermal decomposition behavior -- Plate-like shape; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.07.028
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Plate-like Zn2 W barium hexagonal ferrites were prepared using a combined coprecipitation and molten salt method. The thermal decomposition behavior of precipitates was systematically studied by TG–DSC and XRD. Pure plate-like Zn2 W barium hexagonal ferrites with optimal properties were obtained at a synthesis temperature of 1150 °C for 1 h. Phase composition, morphology and magnetic properties of the Zn2 W ferrite powders synthesized at different temperatures (1100–1250 °C) and different holding times (0.5–3 h) were investigated by XRD, SEM and VSM. The electromagnetic parameters were studied by VNA. Saturation magnetization of Zn2 W ferrite synthesized at 1150 °C for 1 h reached the maximum of 76.24 emu/g, whereas coercivity decreased with the increase in synthesis temperature and holding time.