Tailoring the Microstructure of NiZn Ferrite for Power Field Applications
TANG Xiao-Li, SU Hua** , ZHANG Huai-Wu
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054
Abstract ：The effects of grain size and magnetic domain state on the power loss (from low to high induction conditions) and permeability characteristics of NiZn ferrites are investigated. It is found that under relatively low induction conditions (Bm < 50 mT), a NiZn ferrite with a dense and monodomain microstructure obtains the lowest power loss. However, a NiZn ferrite with a larger average grain size displays a lower power loss under high induction conditions, and the influence of domain state on power loss is inconspicuous. Extremely large grain size and closed pores also lead to a poor frequency stability of permeability. Thus, synthetically considering the power loss and permeability characteristics, a NiZn ferrite with an even and large average grain size also has few closed pores and is the best choice for use under high induction conditions.
收稿日期: 2012-05-02
出版日期: 2012-07-31
[1] Lucas A, Lebourgeois R, Mazaleyrat F and Laboure E 2010 Appl. Phys. Lett. 97 182502 2007 J. Magn. Magn. Mater. 310 17 2008 J. Alloys. Compd. 461 312 2010 Chin. Phys. Lett. 27 126401 2010 Chin. Phys. Lett. 27 117501 2001 IEEE Trans. Magn. 37 2359 2008 J. Phys. D 41 235002 2008 J. Appl. Phys. 103 093903 2007 Mater. Lett. 61 1601 1996 Appl. Phys. Lett. 69 2927 1998 J. Appl. Phys 83 6870 th International Conference on Ferrites p 224J. Magn. Mater. Devices 39 7 (in Chinese)2003 J. Magn. Magn. Mater. 254-255 541 2000 J. Appl. Phys. 87 6229 2008 J. Magn. Magn. Mater. 320 483 2008 J. Appl. Phys. 103 103907
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
QI Xin;ZHOU Xin;SHU Di;ZHAO Jing-Jing;WANG Wei;CHEN Juan**
. Effect of Porous Structure on the Magnetic Properties of Nix y 1−x-y 2 4
[8]
ZHOU Xin;HOU Zhi-Ling;LI Feng;QI Xin**
. Magnetic Properties of Ni-Zn Ferrite Prepared with the Layered Precursor Method
[9]
SU Hua;ZHANG Huai-Wu;TANG Xiao-Li;JING Yu-Lan;ZHONG Zhi-Yong. Influences of Bi2 O3 /V2 O5 Additives on the Microstructure and Magnetic Properties of Lithium Ferrite
[10]
WANG Xiao-Xiong;LI Hong-Nian;XU Ya-Bo;WANG;ZHANG Wen-Hua;XU Fa-Qiang. Electronic Structure of Eu6 C60
[11]
SONG Yuan-Qiang;ZHANG Huai-Wu;WEN Qi-Ye;ZHU Hao;John Q. Xiao. Additional Y3+ Doping Effect on Ferromagnetism of Ce0.97 Co0.03 O2-δ Compounds
[12]
TENG Xiao-Yun;YU Wei;YANG Li-Hua;HAO Qiu-Yan;ZHANG Li;XU He-Ju;LIU Cai-Chi;FU Guang-Sheng. Room-Temperature Ferromagnetism in Zn 1-x Mnx O Thin Films Deposited by Pulsed Laser Deposition
[13]
ZHANG Ning;BAO Jian-Chun;LI Gang;GENG Tao;CHEN Ji-Kang. Intergranular Tunnelling and Field-Induced Percolation Fluctuation of Granular Composites (La1-z Agz MnO3 )/(MnO2 /Mn2 O3 )
[14]
DAI Yao-Dong;HAN Wei;ZHENG Likun;XIA Yuan-Fu. Magnetic Behaviour of Iron Oxychloride and Its Organometallic Intercalation Compounds Studied by Möossbauer Spectroscopy
[15]
WU Jian;ZHANG Shi-Yuan;HU Xiu-Kun. Spin-Polarized Tunnelling Magnetoresistance Effects in La0.833 K0.167 MnO3 /SrTiO3 Polycrystalline Perovskite Manganites
2012, Vol. 29 
