The effect of calcining temperature on the magnetic properties of the ultra-fine NiCuZn-ferrites

Jung Sik Kim; Chang Woo Ham

doi:10.1016/j.materresbull.2008.06.021

The effect of calcining temperature on the magnetic properties of the ultra-fine NiCuZn-ferrites

Jung Sik Kim, Chang Woo Ham

Department of Materials Science and Engineering

University of Seoul

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

In this study, the ultra-fine NiCuZn-ferrite was prepared by a coprecipitation method. The magnetic properties were investigated in terms of calcining temperature. The ferrite powders, Ni_0.206Cu_0.206Zn_0.618Fe_1.94O_4-δ, were initially heat treated at various temperatures of 300-750 °C, and then sintered at the final temperature of 900 °C. The average particle size calculated by a XRD pattern and confirmed by a transmission electron microscope (TEM) micrograph was 7.5 nm. The calcining temperature was an important factor for microstructures and magnetic properties of the sintered ferrite. Scanning electron microscope (SEM) micrographs showed a uniform grain growth with small pores and high densification at the calcining temperature of 450 °C. From the results of magnetic property measurements, the ferrite calcined at 450 °C showed higher initial permeability (170) and quality factor (72) than those of other calcining temperatures.

Original language	English
Pages (from-to)	633-637
Number of pages	5
Journal	Materials Research Bulletin
Volume	44
Issue number	3
DOIs	https://doi.org/10.1016/j.materresbull.2008.06.021
State	Published - 5 Mar 2009

Keywords

D. Magnetic properties, A. Magnetic materials, B. Chemical synthesis

Access to Document

10.1016/j.materresbull.2008.06.021

Cite this

@article{be8cade45b08411db2179dd6bb18b1ee,

title = "The effect of calcining temperature on the magnetic properties of the ultra-fine NiCuZn-ferrites",

abstract = "In this study, the ultra-fine NiCuZn-ferrite was prepared by a coprecipitation method. The magnetic properties were investigated in terms of calcining temperature. The ferrite powders, Ni0.206Cu0.206Zn0.618Fe1.94O4-δ, were initially heat treated at various temperatures of 300-750 °C, and then sintered at the final temperature of 900 °C. The average particle size calculated by a XRD pattern and confirmed by a transmission electron microscope (TEM) micrograph was 7.5 nm. The calcining temperature was an important factor for microstructures and magnetic properties of the sintered ferrite. Scanning electron microscope (SEM) micrographs showed a uniform grain growth with small pores and high densification at the calcining temperature of 450 °C. From the results of magnetic property measurements, the ferrite calcined at 450 °C showed higher initial permeability (170) and quality factor (72) than those of other calcining temperatures.",

keywords = "D. Magnetic properties, A. Magnetic materials, B. Chemical synthesis",

author = "Kim, \{Jung Sik\} and Ham, \{Chang Woo\}",

year = "2009",

month = mar,

day = "5",

doi = "10.1016/j.materresbull.2008.06.021",

language = "English",

volume = "44",

pages = "633--637",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Ltd.",

number = "3",

}

TY - JOUR

T1 - The effect of calcining temperature on the magnetic properties of the ultra-fine NiCuZn-ferrites

AU - Kim, Jung Sik

AU - Ham, Chang Woo

PY - 2009/3/5

Y1 - 2009/3/5

N2 - In this study, the ultra-fine NiCuZn-ferrite was prepared by a coprecipitation method. The magnetic properties were investigated in terms of calcining temperature. The ferrite powders, Ni0.206Cu0.206Zn0.618Fe1.94O4-δ, were initially heat treated at various temperatures of 300-750 °C, and then sintered at the final temperature of 900 °C. The average particle size calculated by a XRD pattern and confirmed by a transmission electron microscope (TEM) micrograph was 7.5 nm. The calcining temperature was an important factor for microstructures and magnetic properties of the sintered ferrite. Scanning electron microscope (SEM) micrographs showed a uniform grain growth with small pores and high densification at the calcining temperature of 450 °C. From the results of magnetic property measurements, the ferrite calcined at 450 °C showed higher initial permeability (170) and quality factor (72) than those of other calcining temperatures.

AB - In this study, the ultra-fine NiCuZn-ferrite was prepared by a coprecipitation method. The magnetic properties were investigated in terms of calcining temperature. The ferrite powders, Ni0.206Cu0.206Zn0.618Fe1.94O4-δ, were initially heat treated at various temperatures of 300-750 °C, and then sintered at the final temperature of 900 °C. The average particle size calculated by a XRD pattern and confirmed by a transmission electron microscope (TEM) micrograph was 7.5 nm. The calcining temperature was an important factor for microstructures and magnetic properties of the sintered ferrite. Scanning electron microscope (SEM) micrographs showed a uniform grain growth with small pores and high densification at the calcining temperature of 450 °C. From the results of magnetic property measurements, the ferrite calcined at 450 °C showed higher initial permeability (170) and quality factor (72) than those of other calcining temperatures.

KW - D. Magnetic properties, A. Magnetic materials, B. Chemical synthesis

UR - https://www.scopus.com/pages/publications/58849134180

U2 - 10.1016/j.materresbull.2008.06.021

DO - 10.1016/j.materresbull.2008.06.021

M3 - Article

AN - SCOPUS:58849134180

SN - 0025-5408

VL - 44

SP - 633

EP - 637

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 3

ER -

The effect of calcining temperature on the magnetic properties of the ultra-fine NiCuZn-ferrites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this