Morphology and magnetic properties of NiFe2O4 powders prepared in molten sodium chloride. Issue 6 (16th June 2021)

• Record Type: Journal Article
• Authors: Ni, J.L.; Lin, X.; Wang, Q.; Sun, C.Y.; Du, F.Y.; Liu, X.S.; Feng, S.J.
• Is Part Of: Materialwissenschaft und Werkstofftechnik. Volume 52:Issue 6(2021)
• Page Start: 677
• Page End: 681
• Publication Date: 2021-06-16
• Subjects: Magnetic materials -- growth from melt -- crystal morphology -- oxides -- single spinel; Magnetische Werkstoffe -- Schmelzewachstum -- Kristallmorphologie -- Oxide -- Einzelspinell; Materials -- Periodicals; Materials -- Testing -- Periodicals; 620.1
• DOI: 10.1002/mawe.202000334
• Languages: English
• ISSNs: 0933-5137

Abstract

Abstract: NiFe2 O4 powders were successfully fabricated at different temperatures by using molten salt method and their structure and magnetic properties were investigated by using x‐ray diffractometer, scanning electron microscope and vibrating sample magnetometer. The x‐ray diffractometer result shows that all powders are single spinel phase, scanning electron microscope image indicates that the grain mainly has an octagonal shape and the average particle size increases with increasing sintering temperature. The vibrating sample magnetometer data reveal that saturation magnetization of NiFe2 O4 powders increases, while coercivity decreases with increasing sintering temperature. Abstract : The NiFe2 O4 powder was successfully prepared by the molten salt method at different temperatures and its structure and magnetic properties were studied. The study discovered that all the powders are spinel phase, and the crystal grains are mainly octagonal. The average particle size and saturation magnetization increase with temperature, but the coercivity decreases.