均匀设计应用于M型钡铁氧体的制备研究
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摘要
将均匀设计这一优化试验设计方法分别应用于溶胶凝胶-自蔓延法、化学共沉淀法制备M型钡铁氧体(BaFe_(12)O_(19))。以饱和磁化强度M_s为实验指标,通过回归分析方法分别对两种制备方法的均匀实验结果进行分析,建立了实验指标M_s与实验因素间的回归方程;基于回归方程,判断了各因素对实验指标的影响显著性以及影响主次顺序,确立了两种方法制备M型钡铁氧体的最优实验条件并经验证实验得到确认。验证实验表明溶胶凝胶-自蔓延法制备的M型钡铁氧体的M_s(76.55emu/g)略优于化学共沉淀法的M_s(74.84emu/g)。
The optimized method of uniform design was applied to the preparation of M-type barium ferrite(BaFe_(12)O_(19)) by sol-gel-self-propagation method and chemical co-precipitation method.With the saturation magnetization M_s as the experimental index,the uniform experimental results of the two preparation methods were analyzed by regression analysis method.The experimental index M_s and the regression equation of experimental factors(iron/barium molar ratio,pH value,citric acid and nitrate) were established.Based on the regression equation,the influence of various factors on the experimental indicators and the order of influence were analyzed.The optimal experimental conditions for the two methods to prepare M-type ferrite were determined and confirmed by validated experiments.The verification experiments show that the M-type barium ferrite M_s prepared by the sol-gel-self-propagation method(76.55 emu/g) is a little better than the M_s of the chemical coprecipitation method(74.84 emu/g).
The optimized method of uniform design was applied to the preparation of M-type barium ferrite(BaFe_(12)O_(19)) by sol-gel-self-propagation method and chemical co-precipitation method.With the saturation magnetization M_s as the experimental index,the uniform experimental results of the two preparation methods were analyzed by regression analysis method.The experimental index M_s and the regression equation of experimental factors(iron/barium molar ratio,pH value,citric acid and nitrate) were established.Based on the regression equation,the influence of various factors on the experimental indicators and the order of influence were analyzed.The optimal experimental conditions for the two methods to prepare M-type ferrite were determined and confirmed by validated experiments.The verification experiments show that the M-type barium ferrite M_s prepared by the sol-gel-self-propagation method(76.55 emu/g) is a little better than the M_s of the chemical coprecipitation method(74.84 emu/g).
引文
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[2] Chaocheng Liu,Xiansong Liu,Shuangjiu Feng,et al.Microstructure and magnetic properties of M-type strontium hexagonal ferrites with Y-Co substitution[J].Journal of Magnetism and Magnetic Materials,2017,436:126-129.
[3] 邱伟国,吴刚,赵修彬.W型铁氧体掺杂在M型铁氧体中的应用研究[J].金属功能材料,2018,25(1):33-35.
[4] 冯辉红,李梦君,高扬.溶胶-凝胶法制备铁氧体材料及应用于建筑吸波领域的研究[J].应用化工,2016,45(1):144-147.
[5] Xiaogu Huang,Jing Zhang,Wei Wang,et al.Effect of pHvalue on electromagnetic loss properties of Co-Zn ferrite prepared via coprecipitation method[J].Journal of Magnetism and Magnetic Materials,2016,405:36-41.
[6] 佘彦飞,宁斌,卢银杏,等.高能球磨法制备锰锌铁氧体前驱体粉末[J].轻工科技,2017,33(6):47-48.
[7] Mingling Li,Xiansong Liu,Taotao Xu,et al.Synthesis and characterization of nanosized MnZn ferrites via a modified hydrothermal method[J].Journal of Magnetism and Magnetic Materials,2017,439:228-235.
[8] Manju Kurian,Divya S.Nair.Effect of preparation conditions on Nickel Zinc Ferrite nanoparticles:A comparison between sol-gel auto combustion and co-precipitation methods[J].Journal of Saudi Chemical Society,2016,20(S1):S517-S522.
[9] 刘文卿.实验设计[M].北京:清华大学出版社,2014.
[10] 吴卫,石绍军.均匀设计方法在化工工艺条件优化及催化剂研制中的应用[J].化工技术与开发,2013,42(1):18-20.
[11] 曹昌盛,孟锦宏,孙杰,等.化学共沉淀法制备M型钡铁氧体研究[J].沈阳理工大学学报,2010,29(1):71-75.
[12] 关山月.二维M型钡铁氧体的制备、形成历程及性能研究[D].沈阳:沈阳理工大学,2013.
[13] Chan Hyuk Rhee,Jung Tae Lim,Chul Sung Kim et al.Neutron Diffraction and Magnetic Properties of Ba2Co2Fe12O22:Co2Y[J].Journal of the Korean Physical Society,2013,62(12):1919-1921.