Effect of Sintering Temperature on Structural, Morphological, and Magnetic Properties of Nickel Ferrite Prepared via a Polyol Method. Issue 1 (13th October 2020)

• Record Type: Journal Article
• Authors: Patil, Rajendra P.; Waghmare, Mahendra B.; Kalantre, Vilas M.; Kadam, Mohan R.; Chikalkar, Milind G.; Delekar, Sagar D.
• Editors: Latthe, Sanjay S.
• Is Part Of: Macromolecular symposia. Volume 393:Issue 1(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-10-13
• Subjects: ferrite -- magnetic materials -- SEM -- sintering temperature -- XRD; Macromolecules -- Congresses; Polymers -- Congresses; Polymerization -- Congresses; Macromolecules -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/masy.202000178
• Languages: English
• ISSNs: 1022-1360

Abstract

Abstract: The effects of sintering temperature on the structural and magnetic properties of polycrystalline nickel ferrite synthesized by the novel polyol method are investigated. The effects of heat treatment temperature on crystalline phases formation, microstructure, and magnetic properties of Ni ferrite are investigated by x‐ray diffraction (XRD), thermogravimetric, and differential thermal analysis, scanning electron microscopy, transmission electron microscopy, Fourier‐transform infrared spectroscopy (FT‐IR), and B‐H loop tracer technique. The XRD plot of the powder samples sintered at different temperature shows increase in the peak intensity values with respect to temperature of sintering thereby showing an increasing crystallinity of the samples with an increasing sintering temperature. FT‐IR spectra for sample sintered at 773 K shows two sharp bands on octahedral and tetrahedral sites. Scanning electron micrographs show spherical and uniform grains which is observed on sintering temperature 773 K. Particle size of nickel ferrite is in the range of 11–15 nm, and depends on the sintering temperature and sintering time. The saturation magnetization increased from 23.45 to 45.61 emu g −1 and coercivity increases from 327.27 to 1097.03 Oe with an increase in particle size.