کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1650659 | 1007611 | 2009 | 4 صفحه PDF | دانلود رایگان |

The magnetic, crystallographic properties and grain morphology of synthesized Ba0.5Sr0.5CoxTixFe(12 − 2x)O19 ferrite have been investigated by XRD, SEM and VSM. XRD and SEM confirm M-type hexagonal crystal structure. X-ray diffraction indicates expansion of hexagonal unit cell with substitution of Co2+ and Ti4+ ions. The microstructure governs increase in density and intergrain connectivity with substitution. The preferential site occupancy of substituted Co2+ and Ti4+ ions results in rapid decline of anisotropy field, hysteresis loops also revealed same effect of substitution. Coercivity and remanence magnetization can be easily controlled by varying substitution while maintaining high saturation magnetization, making it useful for recording media.
Journal: Materials Letters - Volume 63, Issue 22, 15 September 2009, Pages 1921–1924