Cu-Ti掺杂对钡铁氧体显微结构和电磁性能的影响
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摘要
以Fe_2O_3、Ba CO_3、Cu O和Ti O_2为原料,采用固相烧结法,在经过优化的烧结温度1200℃下进行固相烧结,制备了Cu-Ti共掺杂的钡铁氧体Ba Fe_(12-2)x Cux Tix O_(19)(x=0.00,0.05,0.10,0.15和0.20),并研究了Cu-Ti添加量对钡铁氧体组成,结构和电磁性能的影响。结果表明,掺杂的Cu~(2+)和Ti~(4+)可以进入钡铁氧体晶格中,且在样品中没有观察到第二相;随着Cu-Ti掺杂量的增加所得钡铁氧体的矫顽力逐渐下降,从204.46 k A/m逐渐降低到86.82 k A/m;饱和磁化强度变化很小,在54.61~58.42 A·m~2/kg之间微弱波动;介电常数先增大后减小,但介电损耗正切值几乎不变。
Using Ba CO_3,Fe_2O_3,Cu O and TiO_2 powders as raw materials,Ba Fe_(12-2)x Cux Tix O_(19)(x=0.00,0.05,0.10,0.15 and 0.20)ferrites were fabricated at the optimum temperature of 1200oC by a conventional solid-state-reaction sintering method.The co-doping effect of Cu~(2+)-Ti~(4+)on the microstructure and magnetic properties of the as-prepared ferrites was investigated.The results show that the doped Cu~(2+)-Ti~(4+)can enter the lattice of Ba Fe_(12)O_(19),and no second phase is observed in the doped samples.With the increase of doping amount of Cu~(2+)-Ti~(4+)ions,the coercivity of the prepared samples decreases from 204.46 k A/m to 86.82 k A/m and the saturation magnetization fluctuates somewhat between 54.61 and 58.42 A·m~2/kg.With increasing doping amount of Cu-Ti ions,the dielectric constant increases first and then decreases,but the change of dielectric loss is very slight.
Using Ba CO_3,Fe_2O_3,Cu O and TiO_2 powders as raw materials,Ba Fe_(12-2)x Cux Tix O_(19)(x=0.00,0.05,0.10,0.15 and 0.20)ferrites were fabricated at the optimum temperature of 1200oC by a conventional solid-state-reaction sintering method.The co-doping effect of Cu~(2+)-Ti~(4+)on the microstructure and magnetic properties of the as-prepared ferrites was investigated.The results show that the doped Cu~(2+)-Ti~(4+)can enter the lattice of Ba Fe_(12)O_(19),and no second phase is observed in the doped samples.With the increase of doping amount of Cu~(2+)-Ti~(4+)ions,the coercivity of the prepared samples decreases from 204.46 k A/m to 86.82 k A/m and the saturation magnetization fluctuates somewhat between 54.61 and 58.42 A·m~2/kg.With increasing doping amount of Cu-Ti ions,the dielectric constant increases first and then decreases,but the change of dielectric loss is very slight.
引文
[1]Robert C P.Progress in Materials Science[J],2012,57:1191
[2]Wang C M(汪春满).Study on the Modification of M-Type Barium Ferrite Materials by the Doping(M型钡铁氧体的掺杂改性研究)[D].Beijing:China University of Geosciences,2017
[3]Li Zhiguang(李志广),Wang Jianjiang(王建江),Mi Weijuan(米伟娟)et al.Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2015,44(7):1643
[4]Auwal I A,Baykal A,Güngüne?H et al.Ceramics International[J],2016,42:3380
[5]Teh G B,Wong Y,Richard D.Journal of Magnetism and Magnetic Materials[J],2011,323:2318
[6]Li L C,Chen K Y,Liu H et al.Journal of Alloys and Compounds[J],2013,557:11
[7]Kreisel J,Vincent H,Tasset F et al.Journal of Magnetism and Magetic Materials[J],2001,224(1):17
[8]Awadallah A,Mahmood S H,Maswadeh Y et al.Materials Research Bulletin[J],2015,74:192
[9]Huang L Z,Hashim M,Ismail I et al.Journal of Superconductivity and Novel Magnetism[J],2015,10(28):1
[10]Tang Quan(汤铨),Lu Qin(卢琴),Sun Lina(孙历娜)et al.Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2010,39(4):372
[11]Jia J G,Liu C Y,Ma N et al.Science and Technology of Advanced Materials[J],2013,4(14):45 002
[12]Bsoul I,Mahmood S H,Lehlooh A F.Journal of Alloys and Compounds[J],2010,498(2):157
[13]Chawla S K,Mudsainiyan R K,Meena S S et al.Journal of Magnetism and Magnetic Materials[J],2014,350:23
[14]Han M G,Liang D F,Deng L J.Applied Physics Letters[J],2007,90:492
[2]Wang C M(汪春满).Study on the Modification of M-Type Barium Ferrite Materials by the Doping(M型钡铁氧体的掺杂改性研究)[D].Beijing:China University of Geosciences,2017
[3]Li Zhiguang(李志广),Wang Jianjiang(王建江),Mi Weijuan(米伟娟)et al.Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2015,44(7):1643
[4]Auwal I A,Baykal A,Güngüne?H et al.Ceramics International[J],2016,42:3380
[5]Teh G B,Wong Y,Richard D.Journal of Magnetism and Magnetic Materials[J],2011,323:2318
[6]Li L C,Chen K Y,Liu H et al.Journal of Alloys and Compounds[J],2013,557:11
[7]Kreisel J,Vincent H,Tasset F et al.Journal of Magnetism and Magetic Materials[J],2001,224(1):17
[8]Awadallah A,Mahmood S H,Maswadeh Y et al.Materials Research Bulletin[J],2015,74:192
[9]Huang L Z,Hashim M,Ismail I et al.Journal of Superconductivity and Novel Magnetism[J],2015,10(28):1
[10]Tang Quan(汤铨),Lu Qin(卢琴),Sun Lina(孙历娜)et al.Rare Metal Materials and Engineering(稀有金属材料与工程)[J],2010,39(4):372
[11]Jia J G,Liu C Y,Ma N et al.Science and Technology of Advanced Materials[J],2013,4(14):45 002
[12]Bsoul I,Mahmood S H,Lehlooh A F.Journal of Alloys and Compounds[J],2010,498(2):157
[13]Chawla S K,Mudsainiyan R K,Meena S S et al.Journal of Magnetism and Magnetic Materials[J],2014,350:23
[14]Han M G,Liang D F,Deng L J.Applied Physics Letters[J],2007,90:492