Fabrication, structure and properties of BaTiO3–BaFe12O19 composites with core–shell heterostructure. Issue 13 (November 2015)

• Record Type: Journal Article
• Authors: Dong, Zijing; Pu, Yongping; Gao, Ziyan; Wang, Peikui; Liu, Xiaoyan; Sun, Zixiong
• Is Part Of: Journal of the European Ceramic Society. Volume 35:Issue 13(2015:Nov.)
• Page Start: 3513
• Page End: 3520
• Publication Date: 2015-11
• Subjects: Core–shell heterostructure -- Microwave hydrothermal -- Dielectric properties -- Magnetic properties; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2015.06.016
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: (1 − x )BaTiO3 – x BaFe12 O19 ( x = 0.02, 0.04, 0.06, 0.08, 0.10 and 0.12) composites with core–shell heterostructure could be facilely synthesized via combined microwave hydrothermal and sonochemical method in an optimized condition. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicated that the core–shell heterostructure with a BaTiO3 core and BaFe12 O19 shell were successfully prepared. The saturation magnetization of samples increased from 0.51 to 28.61 emμ/g during BaFe12 O19 content increases from 0.02 to 0.12, which is higher than the calculated expected values for all samples. A broad dielectric peak appeared in the range of 200 ∼ 300 °C, which shifted toward high temperatures with increasing frequency.