Enhancing structural and magnetic properties of BaFe12O19 nanoparticles through co-substitution (Co-Mn): A promising approach for permanent magnet applications

• DOI: 10.1088/1402-4896/ad0c91
• Publication Date: 2023-11-14T22:35:44Z
• Authors: Moatoshi; Sidananda Sarma; J P Borah
• Keywords: Thermogravimetric analysis; Rietveld Refinement; Powder Diffraction; Thermal Stability

Abstract In-depth study into the creation and improvement of rare-earth free permanent magnets, particularly ferrites, has been sparked by recent economic environmental concerns. M-type barium hexaferrites (BaFe 12 O 19 , pure BHF) are a class low-cost magnets with an excellent curie temperature good resistance to oxidation corrosion that significant from technological perspective. In current study, experimental conditions optimized obtain hexaferrite ) co-substituted transition elements (Co Mn) 12–2x Co x Mn via chemical co-precipitation method. this framework, different substitution possibilities will be investigated. The structure, morphology, vibrational spectrum, thermal stability generated nanoparticles were revealed using powder x-ray diffraction (XRD), transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR) thermogravimetric analysis (TGA). Rietveld refinement was used estimate average bond length angle in order determine impact superexchange interaction. Based on more precise structural characteristics, atomic occupation distribution bonds depicted their charge density graph. For all synthesized materials, maximum energy product (BH) max magnetic characteristics (VSM) also potential causes phenomenon examined discussed at length.