Cu-Zn-Mg ferrite의 조성성분 및 소결온도에 따른 자기적 특성변화 연구Variation of Magnetic Properties of Cu-Zn-Mg ferrites with Various Compositions and Sintering Temperatures
- Other Titles
- Variation of Magnetic Properties of Cu-Zn-Mg ferrites with Various Compositions and Sintering Temperatures
- Authors
- 고재귀
- Issue Date
- Jun-2003
- Publisher
- 한국재료학회
- Keywords
- Sintering temperature; initial permeability; grain size; magnetic induction
- Citation
- 한국재료학회지, v.13, no.6, pp.365 - 368
- Journal Title
- 한국재료학회지
- Volume
- 13
- Number
- 6
- Start Page
- 365
- End Page
- 368
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/20885
- ISSN
- 1225-0562
- Abstract
- Small amounts of additives such as mol % 0.13 NiO and mol % 0.01 CaCO3 were added to Cu-Zn-Mg ferrites. Basic
composition of the Cu-Zn-Mg ferrites was Cu0.161Fe0.054Zn0.486Mg0.407Fe1.946O4 (group A) and Cu0.263Fe0.027Zn0.503Mg0.262Fe1.973O4 (group B). Specimens were sintered at different temperatures (1010, 1030, 1050oC) for 2 hours in air followed by an air cooling. Then, effects of various composition and sintering temperatures on the microstructure and the magnetic properties such as inductions, coercive forces, and initial permeabilities of the Cu-Zn-Mg ferrites were investigated. The average grain size increased with the increase of sintering temperature. The magnetic properties obtained from the aforementioned Cu-Zn-Mg ferrite specimens were 1,724 gauss for the maximum induction, 1.0 oersted for the coercive force, and 802 for the initial permeability. These magnetic properties indicated that the specimens could be utilized as the core of IFT (intermediate frequency transformer) and antenna in the amplitude modulation.
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