Influence of PbO on microstructure and properties of a NiZn ferrite
Source abstract
Abstract
Abstract Densification and microstructure development in PbO-doped NiZn ferrite have been studied with special emphasis on the effect of the PbO amount. Pure Ni 0.36 Zn 0.64 Fe 2 O 4 ferrite powder requires a sintering temperature of about 1300 °C to achieve a density of 5 g/cm 3 . A small amount of PbO added to the ferrite powder reduces its sintering temperature by about 200 °C, without degrading material properties. A sintered density of 4.9 g/cm 3 was achieved at 1100 °C with 1.2 wt.% PbO addition. Densification has been found to occur by liquid phase sintering. The PbO addition was also found to prevent exaggerated grain growth by hindering grain boundary motion.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Metallic Glasses and Amorphous Alloys · Electrical and Thermal Properties of Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. The effect of Cu substitution on the electrical and magnetic properties of Ni–Zn ferrites10.1109/20.489838 ↗
2. The effect of V2O5 on the sintering of NiCuZn ferrite10.1109/20.489841 ↗
3. Low-temperature sintering of Ni–Zn–Cu ferrite and its permeability spectra10.1016/S0304-8853(96)00709-3 ↗
4. Influence of sintering conditions on the microstructural and electrical properties of NiZn-ferrites, Proc. Int. Symp. on Ferrites in Asia '97, Makuhari, Chiba, Japan, September 1997
5. Densification by nonmagnetic additives of high frequency lithium–zinc and nickel–zinc ferrites10.1016/0304-8853(95)01181-1 ↗
6. Microstructure and magnetic and electric properties of low-temperature sintering Mn–Zn ferrites without and with addition of lithium borosilicate glass10.1016/S0304-8853(99)00480-1 ↗
7. Influence of PbO and Ta2O5 on some physical properties of MgCuZn ferrites10.1002/1521-4079(200102)36:2<157::AID-CRAT157>3.0.CO;2-9 ↗
8. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides10.1107/S0567739476001551 ↗
9. Pore-filling process in liquid-phase sintering10.1007/BF02644700 ↗
10. Liquid redistribution during liquid-phase sintering10.1111/j.1151-2916.1986.tb04688.x ↗
11. Densification and structural development in liquid-phase sintering10.1007/BF02644699 ↗
12. Densification during sintering in the presence of a liquid phase. I. Theory10.1063/1.1735155 ↗
13. Kingery · 1976
14. Interface reactions between silicon dioxide-lead oxide glass and manganese zinc ferrite10.1111/j.1151-2916.1989.tb07650.x ↗
15. The effect of intragranular domain walls in MgMnZn-ferrite10.1063/1.367562 ↗