Magnetic properties of high frequency Ni-Zn ferrites doped with CuO

Caltun, Ovidiu Florin; Spînu, Leonard; Stancu, A.

doi:10.1109/20.951170

Cited by 63 publications

(35 citation statements)

References 7 publications

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“…Microstructure and magnetic properties of these ferrites are highly sensitive to preparation method, sintering conditions and amount of constituent metal oxide, including impurities or dopants. Small amounts of additives can greatly affect the properties of Ni-Zn ferrites [4,5]. Additives can be divided into three categories.…”

Section: Introductionmentioning

confidence: 99%

Influence of MoO3 and V2O5 co-doping on the magnetic properties and microstructure of a Ni–Zn ferrite

Mirzaee

Shafyei

Golozar

et al. 2008

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Influence of MoO3 and V2O5 co-doping on the magnetic properties and microstructure of a Ni–Zn ferrite

Mirzaee

Shafyei

Golozar

et al. 2008

Journal of Alloys and Compounds

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“…Similar decomposition of the magnetization processes in DWM and DR components have been published so far for AC magnetization only [1,2]. The results presented here could be of a great value as a nondestructive testing method correlating the hysteretic behavior with the mechanical properties.…”

Section: Resultsmentioning

confidence: 48%

Separation of Magnetization Loop in Domain Wall Movement and Domain Rotation Contributions for Soft Magnetic Materials

Varga

Kovács

2008

Acta Phys. Pol. A

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The domain wall movement and magnetization rotations processes are separated experimentally in quasi-static magnetization process of a Finemet type ultrasoft magnetic material. The reversible domain rotations contribution is obtained from the integration of the reversible permeability, µ DR , as a function of biasing DC field, measured with very small alternative field amplitude, less than 0.05H c . The domain wall movement component is obtained by the integration of the permeability obtained by extraction of µ DR from the differential permeability derived from one branch of the quasi-static major loop.

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“…The sample sintered at 930 °C had obviously more compact and uniform microstructure as well as bigger grain size compared to the sample sintered at 1200 °C. As known, appropriate addition of CuO and V 2 O 5 can promote the diffusion of ions and accelerate the solid-reaction in the sintering process, which resulted in the growth of grains (Kim et al, 2000;Caltun and Spinu, 2001). So the sample sintered at 930 °C shows more compact microstructure and bigger grain size.…”

Section: Resultsmentioning

confidence: 99%

Preparation of high-permeability NiCuZn ferrite

Yan

2005

J Zheijang Univ Sci B

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Appropriate addition of CuO/V 2 O 5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 °C to 930 °C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 °C is superior to that of the NiZn ferrite prepared by sintering at high temperature of 1200 °C because the microstructure of the NiZn ferrite sintered at 930 °C is more uniform and compact than that of the NiZn ferrite sintered at 1200 °C. The high permeability of 1700 and relative loss coefficient tanδ/µ i of 9.0×10 −6 at 100 kHz was achieved in the (Ni 0.17 Zn 0.63 Cu 0.20 )Fe 1.915 O 4 ferrite.

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Magnetic properties of high frequency Ni-Zn ferrites doped with CuO

Cited by 63 publications

References 7 publications

Influence of MoO3 and V2O5 co-doping on the magnetic properties and microstructure of a Ni–Zn ferrite

Influence of MoO3 and V2O5 co-doping on the magnetic properties and microstructure of a Ni–Zn ferrite

Separation of Magnetization Loop in Domain Wall Movement and Domain Rotation Contributions for Soft Magnetic Materials

Preparation of high-permeability NiCuZn ferrite

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