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低热固相反应法合成反尖晶石型NiFe2O4纳米晶吴文伟1,侯生益1,廖森1,王铭钧1,吴学航1,李姝姝1(1.广西壮族自治区南宁市广西大学化学化工学院)摘 要:以NiSO4·7H2O,Fe2(SO4)3和NH4HCO3为原料,在表面活性剂PEG-400存在下,先在室温下研磨反应混合物使其进行固相反应,然后用水洗去混合物中的可溶性无机盐后于80℃下烘干,即得纳米晶NiFe2O4前驱体.通过煅烧前驱体即得反尖晶石型NiFe2O4纳米晶产品.采用TG/DTA,IR,XRD和VSM对前驱体及其热解产品进行表征.结果表明......
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Preparation and characterization of TiO2/acrylic resin composite coatings on sintered NdFeB permanent magnets by electrochemical depositionZhen-Chen Zhong,Ji-Lin Xu,Zheng-Xian Huang,Jun-Ming LuoSchool of Materials Science and Engineering, Nanchang Hangkong University摘 要:The sintered Nd Fe B permanent magnets are widely used in various industries because......
Micromagnetic Analysis on Demagnetization Process of Single-Phase Nanocrystalline Permanent Magnets with Different Degrees of Orientation Zhang Hongwei1,Sun Jirong1,Chen Renjie1,Rong Chuanbing1,Shen..., China) Abstract:A three-dimentional finite element micromagnetic algorithm was developed to study the magnetization reversal of Pr2Fe14B single-phase nanocrystalline permanent magnets.A single-phase......
in permanent magnet materials [J]. Appl Phys, 1967, 38(3): 1015. [20] RATNAM D V, BUESSEM W R. Angular variation of coercive force in barium ferrite [J]. Appl Phys, 1972, 43(3): 1291. (Edited by YANG...; Abstract: Co/Pt multilayers with perpendicular anisotropy were deposited using a dc magnetron sputtering system under high vacuum. Magnetization process was investigated by the measurement of magnetic......
ferrite phase are plotted in Fig.7. It can be seen that Ms and Mr show almost a linear relationship with the molar fraction of CoFe2O4 ferrite, which implies a high magnetic ordering arising from...-qian, MENG Xian-feng. Preparation of Co-substituted MnZn ferrite fibers and their magnetic properties [J]. Materials Chemistry and Physics, 2009, 114: 362-366. [11] SRINIYAS S, LI J Y. The effective......
314001, China; 3. Institute of Polymer Material Engineering, Jiaxing University, Jiaxing 314001, China Received 30 March 2011; accepted 18 June 2011 Abstract: Magnetic nano zinc ferrite fliuds were... was synthesized using stannous octoate as initiator. Magnetic polymer microspheres were fabricated with nano zinc ferrite fluid coated with alanine modified poly lactide. These as-prepared zinc ferrite......
shows that the value ofβjHC obviously decreases with the ferrite content increasing.In addition, a functional relation between magnetic properties and ferrite content was clearly revealed by the physical relation in the magnetic powders. Key words:Nd2Fe14B/Fe3B; ferrite; bonded magnet; [全文内容正在添加中] ......
Research of Microstructure and Anticorrosion Property of Zn-Cr Coating on Sintered NdFeB Permanent Magnet陈玲,韩婧,于升学摘 要:Zn-Cr coating was obtained on the surface of sintered NdFeB permanent magnet by immersing special solution and baked at 290~310 ℃ for 30 min. The anticorrosive property of the coating was studied by 3.5% salt solutions immersion test......
:Nd-Fe-B permanent magnets doped with CuZn5 powders were prepared via conventional sintered method. The effects of CuZn5 contents on magnetic properties...Enhancement of corrosion resistance in sintered Nd-Fe-B permanent magnet doping with different CuZn5 contentsZhuang Wang1,2,Wei-Qiang Liu1,2,Dong-Tao Zhang1,2,Ming Yue1,2,Xiu-Lian Huang3,4,Xu-Liang......
