Structural, magnetic and electrical properties in Al-substitued NiZnCo ferrite prepared via the sol–gel auto-combustion method for LTCC technology

Abstract

Al-substituted NiZnCo ferrite, Ni0.4Zn0.5Co0.1AlxFe2−xO4 (0 ≤ x ≤ 0.20), were synthesized by the sol–gel auto-combustion method.

The effect of polymerization temperature and reaction time on microwave absorption properties of Co-doped ZnNi ferrite/polyaniline composites

“…The result shows a clear transformation phase from magnetic order to disorder from 300 K to 700 K. The inset shows that the composite has a Curie temperature of about 593 K. The sample T-2 shows relatively stable magnetization at low temperatures (300–400 K). A similar result has been reported by Li et al 32 for Ni 0.4 Zn 0.5 Co 0.1 Fe 2 O 4 ferrite prepared by the sol–gel method. However, in this study, the Curie temperature of the composite is higher than that reported, which may be due to different ratios of ferrite.…”

Magnetic and spectroscopic properties of Ni–Zn–Al ferrite spinel: from the nanoscale to microscale

“…For nanometric Ni-Zn ferrites, it is possible to obtain good electric properties and high performance at relatively low sintering temperature. Recently, Li et al 22 examined the dielectric properties and direct-current resistivity of Al-substituted Ni-Zn-Co ferrite nanoparticles. Also, the magnetic properties of Ni-Zn ferrite nanocrystals depend on different sizes, shapes, and synthesis methods.…”