Plate-like SrFe12O19 particles prepared by modified sol–gel method

Autor:	Kang Heon Hur, Yong Hui Li, Jung-Wook Seo, N. A. Sapoletova, S. E. Kushnir, Sung Yong An
Rok vydání:	2015
Předmět:	Diffraction Strontium Materials science chemistry.chemical_element Atmospheric temperature range Coercivity Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Matrix (chemical analysis) chemistry Chemical engineering law Phase (matter) Calcination Sol-gel
Zdroj:	Journal of Magnetism and Magnetic Materials. 389:101-105
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2015.04.055
Popis:	M-type strontium hexaferrite powders were synthesized by the modified sol–gel method with calcination in NaCl matrix in a temperature range 790–850 °C for 1 h. X-ray diffraction analysis shows the formation of pure M-type strontium hexaferrite phase. The SrFe12O19 particles have a plate-like shape with a mean diameter 130–185 nm and a thickness 45–55 nm. The prepared powders show a saturation magnetization 70–72 emu/g and a coercive force 6.0–6.4 kOe. The suggested synthesis method combines simplicity, using of low calcination temperatures and allows to synthesize pure strontium hexaferrite powders with excellent hard magnetic properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e15810f4f8e92e9e7d9538258bcd6af https://doi.org/10.1016/j.jmmm.2015.04.055 Zobrazit plný text záznamu Full Text from ScienceDirect