Nanocrystalline nickel zinc ferrite powders (NixZn1-xFe2O4, A for x=0, B for x=0.2, C for x=0.5, D for x= 0.8 and E for x= 1) were synthesized by polyacrylamide gel method. X-ray diffraction (XRD), transmission electron microscopy (TEM) and wave-guide were used to characterize the composition. The XRD results show that the dried gel powders are amorphous, and the characteristic peaks of the spinel Ni0.5Zn0.5Fe2O4 appear after the gel is calcined at 400℃ for 1 h. When the calcining temperatures are 600 and 800℃, the average grain sizes are identified by TEM to be 10 and 30 nm, respectively. The NixZn1-xFe2O4 powders have both.dielectric loss and magnetic loss in the frequency range of 8.2-11.0GHz. With the increase of Ni2+ ions content, the dielectric parameters (ε′) and permeability (u′) of the NixZn1-xFe2O4 powders decrease while the dielectric loss (ε″), magnetic loss (u″) and the reflection loss increase.
参考文献
| [1] | A.G.Nutan;C.V.Subhash;D.C.Kashyap .[J].Solid State Communications,2005,134:689. |
| [2] | K.H. Wu;W.C. Huang;G.P. Wang;T.R. Wu .Effect of pH on the magnetic and dielectric properties of SiO_2/NiZn ferrite nanocomposites[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2005(10):1822-1831. |
| [3] | C.-H. Peng;C.-C. Hwang;J. Wan .Microwave-absorbing characteristics for the composites of thermal-plastic polyurethane (TPU)-bonded NiZn-ferrites prepared by combustion synthesis method[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2005(1):27-36. |
| [4] | R.Dosoudil;M.Usakova;J.Franek;J.Slama V.Olah .[J].Journal of Magnetism and Magnetic Materials,2006,304:755. |
| [5] | T.Giannakopoulou;L.Lompotiatis;A.Kontogeorakos;G.Kordas .[J].Journal of Magnetism and Magnetic Materials,2002,246:360. |
| [6] | C.-H. Peng;H.-W. Wang;S.-W. Kan .Microwave absorbing materials using Ag-NiZn ferrite core-shell nanopowders as fillers[J].Journal of Magnetism and Magnetic Materials,2004(0):113-119. |
| [7] | X.H.He;G.S.Song;J.H.Zhu .[J].Materials Letters,2005,59:1941. |
| [8] | X.M.Liu;S.Y.Fu;C.J.Huang .[J].Journal of Magnetism and Magnetic Materials,2004,281:234. |
| [9] | E.E.Sileo;R.Rotelo;S.E.Jacobo .[J].PHYSICA B,2002,320:257. |
| [10] | R.K.Sharm;O.Suwalk;N.Lakshmi;K.Venugopalan A.Banerjee P.A.Joy .[J].Materials Letters,2005,59:3402. |
| [11] | Y.L.JING;H.W.ZHANG;L.J.JIA;Y.SHI Y.L.LIU .[J].Journal of Materials Science and Technology,2004,20(01):35. |
| [12] | J.Giri;T.Sriharsha;S.Asthana .[J].Journal of Magnetism and Magnetic Materials,2005,293:55. |
| [13] | Z.F.Zhong;Q.Li;Y.L.Zhang .[J].Powder Technology,2005,155:193. |
| [14] | Y.Kinemuchi;K.Ishizaka;H.Suematsu .[J].Thin Solid Films,2002,407:109. |
| [15] | M.H.Khedr,A.A.Farghali.Physicochemical Properties of Nanocrystallite Copper Ferrite Prepared by a Novel Self Flash Combustion of Acetate Precursors[J].材料科学技术学报（英文版）,2005(05):675-680. |
| [16] | K.H.Wu;W.C.Huang;C.C.Yang;J.S.Hsu .Sol-gel auto-combustion synthesis of Ni_(0.5)Zn_(0.5)Fe_2O_4/(Si0_2)_x (x = 10,20,30 wt.%) nanocomposites and their characterizations[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2005(2):239-248. |
| [17] | Y.Cheng;Y.H.Zheng;Y.S.Wang;F.Bao .[J].Journal of Solid State Chemistry,2005,178:2394. |
| [18] | C.K.Kim;J.H.Lee;S.Katoh;R.Murakami .[J].Materials Research Bulletin,2001,36:2241. |
| [19] | S.Bid;S.K.Pradhan .[J].Materials Chemistry and Physics,2004,84:291. |
| [20] | C.C.Hwang;J.S.Tsai;T.H.Huang .[J].Materials Chemistry and Physics,2005,93:330. |
| [21] | J.M.Daniels;A.Rosencwaig;J.Can .[J].Physica,1970,48:381. |
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