镍锌铁氧体Ni_(1-x)Zn_xFe_2O_4中锌含量对其微观结构以及磁电性能的影响
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摘要
用传统的固相法制备镍锌铁氧体Ni(1-x)ZnxFe2O4(x=0~1.0)。样品在1150~1250℃不同温度烧结,得到了纯相的尖晶石结构铁氧体,深入并详细研究了陶瓷样品的结构、微观结构、磁性能以及电性能。研究发现,居里温度随锌含量的增加呈线性增大;磁导率以及饱和磁化强度随着锌含量的增加先增大后减小;矫顽力在不同烧结温度表现出不同的性能特征,在1200℃烧结的样品的矫顽力随着锌的增多先逐渐增大,然后又逐渐减小,而在1250℃烧结的样品的矫顽力随着锌的增加整体逐渐减小;部分样品的介电性能出现了德拜迟豫现象。
Nickel zinc ferrites Ni( 1-x)ZnxFe2 O4( with x = 0-1. 0) were synthesized by the conventional solid-state reaction technique. A pure spinel crystal structure was obtained in the sintering temperature range of 1150-1250 ℃. The samples were investigated for their structure,microstructure,magnetic and dielectric properties in detail. It is found that the Curie temperature decreases linearly with the increase in zinc contents. The magnetic permeability and saturation magnetization firstly increase to a high value and then reduce with increasing zinc contents. But the coercivity shows different behavior with different temperature. It increases at first and then decreases for the sample sintered at 1200 ℃ while it descends monotonically with the zinc concentration for the sample sintered at 1250 ℃. The dielectric constants of part samples appear Debye relaxation phenomenon.
Nickel zinc ferrites Ni( 1-x)ZnxFe2 O4( with x = 0-1. 0) were synthesized by the conventional solid-state reaction technique. A pure spinel crystal structure was obtained in the sintering temperature range of 1150-1250 ℃. The samples were investigated for their structure,microstructure,magnetic and dielectric properties in detail. It is found that the Curie temperature decreases linearly with the increase in zinc contents. The magnetic permeability and saturation magnetization firstly increase to a high value and then reduce with increasing zinc contents. But the coercivity shows different behavior with different temperature. It increases at first and then decreases for the sample sintered at 1200 ℃ while it descends monotonically with the zinc concentration for the sample sintered at 1250 ℃. The dielectric constants of part samples appear Debye relaxation phenomenon.
引文
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[24]Ranga Mohan G,Ravinder D,Ramana Reddya A V,et al.Dielectric Properties of Polycrystalline Mixed Nickel-Zinc Ferrites[J].Mater Lett,1999,40(1):39–45.
[2]冯旺军,郑文谦,赵星,等.Ba Fe12O19/Ni0.6Zn0.4Fe2O4复合材料的磁性能研究[J].人工晶体学报,2016,45(3):730-735.
[3]吕淑珍,刘树信,王海滨,等.溶胶-凝胶法制备Ni0.7Zn0.3Fe2O4镍锌铁氧体及其电磁损耗性能研究[J].硅酸盐通报,2010,29(2):361-364+389.
[4]马志军,王俊策,张琪,等.Ni2+含量对纳米Ni-Zn铁氧体电磁损耗特性的影响[J].人工晶体学报,2016,45(3):789-794.
[5]Akther Hossain A K M,Seki M,Kawai T,et al.Colossal Magnetoresistance in Spinel Type Zn1-xNixFe2O4[J].J.Appl.Phys,2004,96(2):1273-1275.
[6]Jalaly M,Enayati M H,Kameli P,et al.Effect of Composition on Structural and Magnetic Properties of Nanocrystalline Ball Milled Ni1-xZnxFe2O4ferrite[J].Physica B,2010,405(2):507-512.
[7]Costa A C F M,Tortellab E.Synthesis,Microstructure and Magnetic Properties of Ni-Zn ferrites[J].J.Magn.Magn.Mater,2003,256(1):174-182.
[8]赵晓宁,兰中文,孙科,等.Ni Zn铁氧体靶材及薄膜的磁性能和微观结构[J].磁性材料及器件,2009,40(3):20-23.
[9]Zhou J P,Lv L,Chen X C.Dielectric and Magnetic Properties of Zn O-doped Cobalt Ferrite[J].J.Ceram.Process.Res,2010,11(2):263-272.
[10]白建民,刘小晰,徐海,等.高密度磁记录用La-Zn替代锶铁氧体薄膜[J].物理学报,2000,49(8):1595-1599.
[11]Jalaly M,Enayati M H,Kameli P,et al.Effect of Composition on Structural and Magnetic Properties of Nanocrystalline Ballmilled Ni1-xZnxFe2O4ferrite[J].Physica B,2010,405:507-512.
[12]Singh D J,Gupta M,Gupta R.First-principles investigation of Mn Fe2O4[J].Phys.Rev.B,2002,65(6)064432-1-5.
[13]Jalaly M,Enayati M H,Kameli P,et al.Effect of composition on structural and magnetic properties of nanocrystalline ball milled Ni1-xZnxFe2O4ferrite[J].Physica B,2010,405(2):507-512.
[14]Verma A,Goel T C,Mendirattu R G.Magnetic Properties of Nickel-zinc Ferrites Prepared By the Citrate Precursor Method[J].J.Magn.Magn.Mater,2000,208(1):13-19.
[15]Lagarkov A N,Rozanov K N.High-frequency Behavior of Magnetic Composites[J].J.Magn.Magn.Mater,2009,321(14):2082-2092.
[16]Nakamura T.Snoke’s Limite in High-frequency Permeability of Polycrystalline Ni-Zn,Mg-Zn,and Ni-Cu-Zn spinel ferrites[J].J.Appl.Phys,2000,88(1):348-353.
[17]Tsutaoka T,Ueshima M,Tokunaga T,et al.Frequency Dispersion and Temperature Variation of Complex Permeability of Ni-Zn Ferrite Composite Materials[J].J.Appl.Phys,1995,78(6):3983-3991.
[18]Verma A,Chatterjee R.Effect of Zinc Concentration on the Structural,Electrical and Magnetic Properties of Mixed Mn-Zn and Ni-Zn Ferrites Synthesized by the Citrate Precursor Technique[J].J.Magn.Magn.Mater,2006,306(2):313-320.
[19]Mahmuda S T,Akther Hossaina A K M,Abdul Hakimb A K M,et al.Influence of Microstructure on the Complex Permeability of Spinel Type NiZn ferrite[J].J.Magn.Magn.Mater,2006,305(1):269–274.
[20]Peng K,Liu F,Fu D,et al.High-temperature Magnetic Properties of Fe-based Nanocrystalline Alloy[J].Mater.Chem.Phys,2005,89(1):138-142.
[21]Gul I H,Ahmed W,Maqsood A.Electrical and Magnetic Characterization of Nanocrystalline Ni-Zn Ferrite Synthesis by Co-precipitation Route[J].J.Magn.Magn.Mater,2008,320(3):270-237.
[22]Koops C G.On the Dispersion of Resistivity and Dielectric Constant of Some Semiconductors at Audiofrequencies[J].Phys.Rev,1951,83(1):121-124.
[23]Verma A,Thakur O P,Prakash C,et,al.Temperature Dependence of Electrical Properties of Nickel-Zinc Ferrites Processed by the Citrate Precursor Technique.Eng.Mater.Sci.B,2005,116(1):1-6.
[24]Ranga Mohan G,Ravinder D,Ramana Reddya A V,et al.Dielectric Properties of Polycrystalline Mixed Nickel-Zinc Ferrites[J].Mater Lett,1999,40(1):39–45.