Air sintering of Y-doped Mn-Zn-Li ferrites at reduced temperatures: additive-assisted enhancement of magnetic properties
Source abstract
Abstract
The intricate interplay between dopant concentration and sintering additives governs the structural and magnetic behavior of Mn-Zn ferrites, offering pathways to tailor their properties for advanced applications. This study presents an investigation into the structural, microstructural, and magnetic properties of Y 3+ -substituted Mn-Zn-Li ferrites synthesized via solid-state route at relatively low sintering temperature (1100 °C) in air, incorporating multi-component sintering additives (SiO 2 , CaO, TiO 2 , and Bi 2 O 3 ). Samples with nominal compositions Y x Li 0.14 Mn 0.4 Zn 0.32 Fe 2.14-x O 4 (x = 0–0.2) were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), density measurements, and vibrating sample magnetometry (VSM). XRD data confirmed nearly pure spinel phases across all doping levels, with gradual lattice expansion due to Y 3+ incorporation . The x = 0.025 composition yielded the highest magnetization (∼60 emu/g) and lowest amount of coercivity (∼19 Oe), highlighting its potential for applications requiring stable magnetic response and grain size control. These findings demonstrate that synergistic Y 3+ doping and additive-assisted sintering can effectively modulate ferrite microstructure and magnetic softness, with x = 0.2 emerging as an optimized composition for next-generation soft magnetic ceramics.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Electromagnetic wave absorption materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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